CN105807535A - Generation device of quantum entanglement among three atomic ensembles - Google Patents
Generation device of quantum entanglement among three atomic ensembles Download PDFInfo
- Publication number
- CN105807535A CN105807535A CN201610321693.3A CN201610321693A CN105807535A CN 105807535 A CN105807535 A CN 105807535A CN 201610321693 A CN201610321693 A CN 201610321693A CN 105807535 A CN105807535 A CN 105807535A
- Authority
- CN
- China
- Prior art keywords
- optical
- outfan
- beams
- optical beam
- splitter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 119
- 238000005259 measurement Methods 0.000 claims abstract description 16
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 230000010355 oscillation Effects 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 7
- 238000003491 array Methods 0.000 claims description 2
- 230000005418 spin wave Effects 0.000 abstract description 7
- 230000009471 action Effects 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- IGLNJRXAVVLDKE-NJFSPNSNSA-N Rubidium-87 Chemical group [87Rb] IGLNJRXAVVLDKE-NJFSPNSNSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 238000001069 Raman spectroscopy Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241000931526 Acer campestre Species 0.000 description 1
- 230000003667 anti-reflective effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000005351 kimble Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical group [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/39—Non-linear optics for parametric generation or amplification of light, infrared or ultraviolet waves
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/39—Non-linear optics for parametric generation or amplification of light, infrared or ultraviolet waves
- G02F1/392—Parametric amplification
Abstract
The invention relates to a generation device of quantum entanglement among three atomic ensembles, and mainly aims to solve the existing technical problem of probability preparation existed by quantum entanglement among a plurality of atomic ensembles. The invention adopts the technical scheme that the generation device of quantum entanglement among the three atomic ensembles comprises a light source unit, nine acousto-optic modulators, three sets of optical parametric amplifiers, a beam coupling system, the three atomic ensembles, three sets of optical filtering systems and an entanglement measurement system. Under the light writing action of quantum memory, orthogonal component quantum states of three entangled light pulses are mapped into collective spin waves of the three atomic ensembles, and quantum entanglement among the three atomic ensembles is certainly established; then, under the light reading action of quantum memory, the collective spin wave quantum states of the three atomic ensembles are mapped into the orthogonal component quantum states of the three release light pulses, and quantum entanglement among the three atomic ensemble is certainly verified through measuring correlative characteristics of the orthogonal component quantum states of the three release light pulses and the collective spin waves of the three atomic ensembles.
Description
Technical field
The present invention relates to the generator of quantum entanglement between a kind of three atom assemblages, it belongs to the generator of definitiveness quantum entanglement between a kind of three atom assemblages being spatially separating.
Background technology
Quantum entanglement not still quantum-mechanical key concept, and be realize quantum information and valuable source that quantum is measured.Along with the development of quantum information science, light and former molecular quantum information network it is the key of development and application.Wherein, the node that atom can process as quantum information and store.Therefore, build the quantum entanglement between multiple atom assemblage, be not only able to set up Quantum Correlation between multiple macro objects, and the quantum information protocols such as quantum state transmission can be realized between multiple quantum nodes.
The transparent mechanism of electromagnetically induced is to realize a kind of effective ways of quantum storage, it is possible to mutually mapped between light and atom by quantum state, it is adaptable to the quantum storage of non-classical optical state.Therefore, the quantum state of multiple photons is mapped to the spin state of atom assemblage, is prepare a kind of feasible method that polyatom assemblage tangles.
2010, the Kimble of California, USA Polytechnics teaches seminar and utilizes spontaneous Raman scattering process to be prepared for variables separation quantum entanglement between four atom assemblages, and at Nature468,412 (2010) have delivered the paper being entitled as " Entanglementofspinwavesamongfourquantummemories ".
Above research work utilizes spontaneous Raman scattering process to establish the quantum entanglement between four atom assemblages, solves the problem that between multiple atom assemblage prepared by quantum entanglement, but said method there is also the technical problem of several forthright preparation.
Summary of the invention
Present invention aim to address that between existing multiple atom assemblage, quantum entanglement also exists the technical problem of several forthright preparation, it is provided that a kind of definitiveness, extensibility are good, the generator of quantum entanglement between three atom assemblages of good reliability.
For solving above-mentioned technical problem, the technical solution used in the present invention is: utilize the transparent mechanism of electromagnetically induced to realize quantum storage, write under light action what quantum stored, the quadrature component quantum state tangling light pulse by three is mapped in collective's spin wave of three atom assemblages, it is determined that set up the quantum entanglement between three atom assemblages to property；Then, under the reading light action of quantum storage, collective's spin wave quantum state of three atom assemblages is mapped in the quadrature component of three release light pulses, by measuring their associate feature, it is determined that the quantum entanglement between three atom assemblages of property ground checking.
The generator of quantum entanglement between a kind of three atom assemblages, including light source cell, nine acousto-optic modulators, three set optical parametric amplifiers, beam coupling system, three atom assemblages, three set optical filter system with tangle measurement system；Beam coupling system is made up of two panels transmitance t=66.7%, the optical beam-splitter of t=50% and three Glan thomson prisms；Described optical filter system is all made up of Glan thomson prism and optical standard tool；Described measurement system of tangling is overlapped balanced homodyne detection system, power adder-subtractors by three and can store digital oscilloscope and form.Described light source cell is provided with three beams local oscillations light signal output end aL1、aL2、aL3, three beams control light signal output end aC1、aC2、aC3, three beams seed photo-signal outfan aS1、aS2、aS3, three beams pump light signals outfan aPUMP1、aPUMP2、aPUMP3；Wherein, three beams controls light signal output end aC1、aC2、aC3Being connected with the first to the 3rd acousto-optic modulator input respectively, the first to the 3rd acousto-optic modulator outfan is connected with the first to the 3rd Glan thomson prism first input end respectively；Three beams pump light signals outfan aPUMP1、aPUMP2、aPUMP3Respectively with the first to the 3rd optical parametric amplifier first input end connects；Three beams seed photo-signal outfan aS1、aS2、aS3It is connected with the 4th to the 6th acousto-optic modulator input respectively, the outfan of the 4th to the 6th acousto-optic modulator is connected with first to the 3rd optical parametric amplifier the second input respectively, first to the 3rd optical parametric amplifier outfan is connected with the 7th to the 9th acousto-optic modulator input respectively, 7th, 8th acousto-optic modulator outfan respectively with the first optical beam-splitter two input connects, first optical beam-splitter the second outfan and the 9th acousto-optic modulator outfan are connected with two inputs of the second optical beam-splitter respectively, first optical beam-splitter the first outfan and two outfans of the second optical beam-splitter are connected with first to the 3rd Glan thomson prism the second input respectively；First to the 3rd Glan thomson prism outfan the respectively with the first to the 3rd atom assemblage input connects；First to the 3rd atom assemblage outfan is connected with the first to the 3rd optical filter system input respectively；First to the 3rd optical filter system outfan respectively with tangle measurement system first and be connected to the 3rd input；Three beams local oscillations light signal output end aL1、aL2、aL3It is connected with tangling measurement system the 4th to the 6th input.
Described light source cell includes tunable laser, 1x2 optical beam-splitter array, 1x5 optical beam-splitter array, three 1x3 optical beam-splitter arrays, acousto-optic modulation system and optical frequency doubler.Wherein, tunable laser adopts low noise, narrow linewidth, ti sapphire laser；The laser of ti sapphire laser output is divided into two bundle laser by 1x2 optical beam-splitter array, beam of laser is connected with 1x5 optical beam-splitter array input, and 1x5 optical beam-splitter array the first outfan produces three beams local oscillations optical signal a by the 2nd 1x3 optical beam-splitter arrayL1、aL2、aL3, 1x5 optical beam-splitter array the second outfan produces three beams by acousto-optic modulation system and the 3rd 1x3 optical beam-splitter array and controls optical signal aC1、aC2、aC3, 1x5 optical beam-splitter array the 3rd to the 5th outfan produces three beams seed photo-signal aS1、aS2、aS3；Second bundle laser produces three beams pump light signals a by optical frequency doubler and a 1x3 optical beam-splitter arrayPUMP1、aPUMP2、aPUMP3。
Described first optical parametric amplifier is operated in parameter magnifying state, output orthogonal phase squeezing light, and second, third optical parametric amplifier described is operated in the anti-magnifying state of parameter, output orthogonal Amplitude Squeezed Light.
Present invention employs technique scheme, compared with background technology, the present invention has that prepared by definitiveness, extensibility is good, the advantage of good reliability.The method have the advantages that
1, the storage of the present invention utilizes quantum write process, it is possible to the quantum state that three components tangle light is mapped in three atom assemblages, it is determined that set up to property the quantum entanglement between three atom assemblage collective spin waves.
The read procedure of quantum that 2, the present invention utilizes storage, it is possible to the quantum state of three atom assemblages is mapped in three release light pulses, it is determined that the quantum entanglement between property ground checking three atom assemblage collective spin wave.
3, the additional noise that the electromagnetically induced transparent plane making that the present invention utilizes enters is little, is suitable for setting up the quantum entanglement between three atom assemblages.
4, different association types multiple can be tangled light pulse and are stored in multiple atom assemblage by the present invention, obtain the quantum entanglement between multiple atom assemblages of different association type.
Entangled State between three atom assemblages produced by the present invention, is suitably applied the quantum information network comprising atom assemblage, particularly realizes the quantum information protocols such as quantum state transmission between quantum information network node.
Accompanying drawing explanation
The structural representation of Fig. 1 present invention；
The structural representation of Fig. 2 light source cell of the present invention；
The energy level schematic diagram of Fig. 3 atom of the present invention；
The control sequential chart of Fig. 4 optical signal of the present invention；
The structural representation of Fig. 5 atom assemblage of the present invention；
Fig. 6 present invention measures the structural representation of system.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As shown in Figure 1, the generator of quantum entanglement between a kind of three atom assemblages in the present embodiment, including 1, nine acousto-optic modulator 21-29 of light source cell, three set optical parametric amplifier 31-33, beam coupling system, three atom assemblage 5-7, three set optical filter system 46-48 with tangle measurement system 8；Beam coupling system is made up of 41,42 and three Glan thomson prism 43-45 of optical beam-splitter of two panels transmitance t=66.7%, t=50%.Described light source cell 1 is provided with three beams local oscillations light signal output end aL1、aL2、aL3, three beams control light signal output end aC1、aC2、aC3, three beams seed photo-signal outfan aS1、aS2、aS3With three beams pump light signals outfan aPUMP1、aPUMP2、aPUMP3；Wherein, three beams controls light signal output end aC1、aC2、aC3Being connected with the first to the 3rd acousto-optic modulator 21-23 input respectively, the first to the 3rd acousto-optic modulator 21-23 outfan is connected with the first to the 3rd Glan thomson prism 43-45 first input end respectively；Three beams pump light signals outfan aPUMP1、aPUMP2、aPUMP3Respectively with the first to the 3rd optical parametric amplifier 31-33 first input end connects；Three beams seed photo-signal outfan aS1、aS2、aS3nullIt is connected with the 4th to the 6th acousto-optic modulator 24-26 input respectively，The outfan of the 4th to the 6th acousto-optic modulator 24-26 is connected with first to the 3rd optical parametric amplifier 31-33 the second input respectively，First to the 3rd optical parametric amplifier 31-33 outfan is connected with the 7th to the 9th acousto-optic modulator 27-29 input respectively，7th、8th acousto-optic modulator 27、28 outfan respectively with the first optical beam-splitter 41 two inputs connect，First optical beam-splitter 41 second outfan and the 9th acousto-optic modulator 29 outfan are connected with two inputs of the second optical beam-splitter 42 respectively，First optical beam-splitter 41 first outfan and 42 two outfans of the second optical beam-splitter are connected with first to the 3rd Glan thomson prism 43-45 the second input respectively；First to the 3rd Glan thomson prism 43-45 outfan the respectively with the first to the 3rd atom assemblage 5-7 input connects；First to the 3rd atom assemblage 5-7 outfan the respectively with the first to the 3rd optical filter system 46-48 input connects；First to the 3rd optical filter system 46-48 outfan respectively with tangle measurement system the 8 first to the 3rd input 1., 2., be 3. connected；Three beams local oscillations light signal output end aL1、aL2、aL3With tangle measurement system 8 the 4th to the 6th input 4., 5., be 6. connected.Described optical filter system 46-48 is made up of Glan thomson prism and optical standard tool, the control light pulse signal a that will vertically polarizeC1、aC2、aC3Filter out, the release light pulse signal a ' of horizontal polarizationP1、a’P2、a’P3It is coupled into measurement system.
As in figure 2 it is shown, described light source cell includes tunable laser 11,1x2 optical beam-splitter array 12,13, three 1x3 optical beam-splitter array 14-16 of 1x5 optical beam-splitter array, acousto-optic modulation system 17 and optical frequency doubler 18.Wherein, tunable laser 11 adopts low noise, narrow linewidth, ti sapphire laser, and the laser of output 795nm, corresponding to the D1 Absorption Line of rubidium 87 atom.Laser is divided into two bundle laser by 1x2 optical beam-splitter array 12, wherein, beam of laser is connected with 1x5 optical beam-splitter array 13 input, and 1x5 optical beam-splitter array 13 first outfan produces three beams local oscillations optical signal a by the 2nd 1x3 optical beam-splitter array 15L1、aL2、aL3, 1x5 optical beam-splitter array 13 second outfan is produced three beams controlled optical signal a by acousto-optic modulation system 17 and the 3rd 1x3 optical beam-splitter array 16 of 6.8GHz shift frequencyC1、aC2、aC3, 1x5 optical beam-splitter array 13 the 3rd to the 5th outfan produces three beams seed photo-signal aS1、aS2、aS3；Second bundle laser produces three beams pump light signals a by optical frequency doubler 18 and a 1x3 optical beam-splitter array 14PUMP1、aPUMP2、aPUMP3。
As it is shown on figure 3, described first to the 3rd atom assemblage 5-7 adopts the 5 of rubidium 87 atom2S1/2F=1 and F=2 and 52P1/2The hyperfine energy level of F '=1, utilize the shift frequency characteristic of the tuning characteristic harmony light modulation system 17 of ti sapphire laser 11, it is thus achieved that the optical signal of respective wavelength.Control optical signal aC1、aC2、aC3Frequency and 52S1/2F=1 to 52P1/2The transition absorption line of F '=1 have the single photon mismatching angle of Δ=700MHz；Local oscillations light aL1、aL2、aL3Frequency and probe light aP1、aP2、aP3Frequency identical, this frequency and 52S1/2F=2 to 52P1/2The transition absorption line of F '=1 have the single photon off resonance of Δ=700MHz and the two-photon mismatching angle of δ=0.5MHz.
As shown in Figure 4, the switching characteristic of nine set acousto-optic modulator 21-29 is utilized, it is achieved the sequencing contro of quantum storage.The whole control cycle takes 1 millisecond.The local oscillations optical signal of balanced homodyne detection system, without acousto-optic modulator, exports strong local oscillations light aL1、aL2、aL3.In 10 microseconds of light and atomic interaction, by acousto-optic modulator 24-26 by seed light aS1、aS2、aS3Closing, the simulated light of seed light is opened and exported to all the other times, for seed light phase locking in balanced homodyne detection system；At probe optical pulse signal with in the atomic interaction time, by the acousto-optic modulator 27-29 probe optical pulse signal a that optical parametric amplifier is exportedP1、aP2、aP3Opened for 500 nanoseconds.At probe optical pulse signal with in the atomic interaction time, by acousto-optic modulator 21-23, the sequential controlling light is manipulated, light a will be controlledC1、aC2、aC3Open 1 microsecond, for realizing the write operation of quantum storage；Within the storage time of 100 nanoseconds, closing control light aC1、aC2、aC3；Afterwards, it is again turned on controlling light aC1、aC2、aC3, for realizing the read operation of quantum storage.
As it is shown in figure 1, three optical parametric amplifiers 31～33 are at three beams seed photo-signal outfan aS1、aS2、aS3With three beams pump light signals outfan aPUMP1、aPUMP2、aPUMP3Effect under, by the relative phase difference of control signal light with pump light, the first optical parametric amplifier 31 is made to be operated in parameter magnifying state, output orthogonal phase squeezing light, second, third optical parametric amplifier 32,33 is made to be operated in the anti-magnifying state of parameter, output orthogonal Amplitude Squeezed Light.
As it is shown in figure 5, described first to the 3rd atom assemblage 5-7 forms by atomic air chamber 51, magnetic shielding system and temperature control system 54；Magnetic shielding system is made up of the magnetic shielding cylinder 53 of magnetic shield paper 52 and metal.Described atomic air chamber 51 is filled with rubidium 87 atomic gas and a certain amount of inert buffer gas, and the logical bright finish at atomic air chamber 51 is coated with the antireflective film of corresponding optical maser wavelength；The outer layer magnetic shield paper 52 of atomic air chamber 51 wraps up, and is placed in the magnetic shielding cylinder 53 of metal；Outer layer at magnetic shielding cylinder 53 is provided with the temperature control system 54 of heating tape, insulation material and temperature control instrument composition to the heating of rubidium atom and accurate temperature controlling.
As shown in Figure 6, tangle measurement system 8 described in overlapped balanced homodyne detection system 84-86, power adder-subtractors 87 by three and digital oscilloscope 88 can be stored form.Utilize optical beam splitting sheet 80U, 80M, 80D, balanced homodyne detection device 81U, 82U, 81M, 82M, 81D, 82D and power subtractor 83U, 83M, 83D by local oscillations optical signal aL1、aL2、aL3With release optical signal a 'P1、a’P2、a’P3Interference signal measurement, be released optical signal a 'P1、a’P2、a’P3Quadrature component, and utilize the simulated light of seed light that their intervention phase difference is locked；Finally by power adder-subtractor 87 with the digital oscilloscope 88 correlated noise to three atom assemblage GHZ states can be stored measure, store and analyze.
Three atom assemblages can be tangled according to PetervanLoock et al. inseparable criterion proposed and judge.If the correlated noise of three release light pulse signals meets such as lower inequality:
<Δ2(X1-X2)>+<Δ2(Y1+Y2+Y3)>≤4
<Δ2(X2-X3)>+<Δ2(Y1+Y2+Y3)>≤4
So, there is quantum entanglement between three atom assemblages.Wherein, X and Y represents orthogonal amplitude and the orthogonal position phase component of release optical signal respectively.<Δ2(X1(2)-X2(3))>and<Δ2(Y1+Y2+Y3) > represent the association variance of quadrature amplitude and orthogonal position phase component respectively.
Three optical parametric amplifier 31-33 are at three beams seed photo-signal outfan aS1、aS2、aS3With three beams pump light signals outfan aPUMP1、aPUMP2、aPUMP3Effect under, produce a branch of orthogonal phase squeezing light and two bundle orthogonal amplitude squeezed lights；And interfere with zero-bit difference at optical beam-splitter 41,42, obtain GHZ Entangled State light；It is converted into three by acousto-optic modulator 24-29 and tangles light pulse aP1、aP2、aP3；Light pulse a is controlled in three beamsC1、aC2、aC3Write effect under, above three is tangled light pulse aP1、aP2、aP3Storage, in three atom assemblage 5-7, makes three atom assemblage 5-7 mutually tangle；Light pulse a is controlled in three beamsC1、aC2、aC3Reading effect under, the quantum state of above three atom assemblage 5-7 is mapped to three release optical signal a 'P1、a’P2、a’P3In, three atom assemblage 5-7 of checking tangle, and utilize three beams local oscillations optical signal aL1、aL2、aL3With balance homodyne detection system 8 to its release optical signal a 'P1、a’P2、a’P3Measurement.
Claims (3)
1. the generator of quantum entanglement between three atom assemblages, it is characterised in that: include light source cell, nine acousto-optic modulators, three set optical parametric amplifiers, beam coupling system, three atom assemblages, three set optical filter system and tangle measurement system；Beam coupling system is made up of two panels transmitance t=66.7%, the optical beam-splitter of t=50% and three Glan thomson prisms；Described optical filter system is all made up of Glan thomson prism and optical standard tool；Described measurement system of tangling is overlapped balanced homodyne detection system, power adder-subtractors by three and can store digital oscilloscope and form；Described light source cell is provided with three beams local oscillations light signal output end aL1、aL2、aL3, three beams control light signal output end aC1、aC2、aC3, three beams seed photo-signal outfan aS1、aS2、aS3With three beams pump light signals outfan aPUMP1、aPUMP2、aPUMP3；Wherein, three beams controls light signal output end aC1、aC2、aC3Being connected with the first to the 3rd acousto-optic modulator input respectively, the first to the 3rd acousto-optic modulator outfan is connected with the first to the 3rd Glan thomson prism first input end respectively；Three beams pump light signals outfan aPUMP1、aPUMP2、aPUMP3Respectively with the first to the 3rd optical parametric amplifier first input end connects；Three beams seed photo-signal outfan aS1、aS2、aS3It is connected with the 4th to the 6th acousto-optic modulator input respectively, the outfan of the 4th to the 6th acousto-optic modulator is connected with first to the 3rd optical parametric amplifier the second input respectively, first to the 3rd optical parametric amplifier outfan is connected with the 7th to the 9th acousto-optic modulator input respectively, 7th, 8th acousto-optic modulator outfan respectively with the first optical beam-splitter two input connects, first optical beam-splitter the second outfan and the 9th acousto-optic modulator outfan are connected with two inputs of the second optical beam-splitter respectively, first optical beam-splitter the first outfan and two outfans of the second optical beam-splitter are connected with first to the 3rd Glan thomson prism the second input respectively；First to the 3rd Glan thomson prism outfan the respectively with the first to the 3rd atom assemblage input connects；First to the 3rd atom assemblage outfan is connected with the first to the 3rd optical filter system input respectively；First to the 3rd optical filter system outfan respectively with tangle measurement system first and be connected to the 3rd input；Three beams local oscillations light signal output end aL1、aL2、aL3Respectively with tangle measurement system the 4th to the 6th input and be connected.
2. the generator of quantum entanglement between a kind of three atom assemblages according to claim 1, it is characterised in that: described light source cell includes tunable laser, 1x2 optical beam-splitter array, 1x5 optical beam-splitter array, three 1x3 optical beam-splitter arrays, acousto-optic modulation system and optical frequency doubler；Wherein, tunable laser adopts low noise, narrow linewidth, ti sapphire laser；The laser of ti sapphire laser output is divided into two bundle laser by 1x2 optical beam-splitter array, beam of laser is connected with 1x5 optical beam-splitter array input, and 1x5 optical beam-splitter array the first outfan produces three beams local oscillations optical signal a by the 2nd 1x3 optical beam-splitter arrayL1、aL2、aL3, 1x5 optical beam-splitter array the second outfan produces three beams by acousto-optic modulation system and the 3rd 1x3 optical beam-splitter array and controls optical signal aC1、aC2、aC3, 1x5 optical beam-splitter array the 3rd to the 5th outfan produces three beams seed photo-signal aS1、aS2、aS3；Second bundle laser produces three beams pump light signals a by optical frequency doubler and a 1x3 optical beam-splitter arrayPUMP1、aPUMP2、aPUMP3。
3. the generator of quantum entanglement between a kind of three atom assemblages according to claim 1, it is characterized in that: described first optical parametric amplifier is operated in parameter magnifying state, output orthogonal phase squeezing light, second, third optical parametric amplifier described is operated in the anti-magnifying state of parameter, output orthogonal Amplitude Squeezed Light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610321693.3A CN105807535B (en) | 2016-05-16 | 2016-05-16 | The generation device of quantum entanglement between a kind of three atom assemblages |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610321693.3A CN105807535B (en) | 2016-05-16 | 2016-05-16 | The generation device of quantum entanglement between a kind of three atom assemblages |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105807535A true CN105807535A (en) | 2016-07-27 |
| CN105807535B CN105807535B (en) | 2018-10-16 |
Family
ID=56451333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610321693.3A Active CN105807535B (en) | 2016-05-16 | 2016-05-16 | The generation device of quantum entanglement between a kind of three atom assemblages |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105807535B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107195324A (en) * | 2017-07-27 | 2017-09-22 | 山西大学 | A kind of high efficiency quantum storing device of continuous variable non-classical optical state |
| CN107272299A (en) * | 2017-07-28 | 2017-10-20 | 山西大学 | The generation device of continuous variable quantum entanglement between multiple atom assemblages |
| CN107346086A (en) * | 2017-07-27 | 2017-11-14 | 山西大学 | The generation device of continuous variable quantum entanglement between quantum channel and quantum nodes |
| CN110133941A (en) * | 2019-04-28 | 2019-08-16 | 山西大学 | A kind of quasi-continuous quantum Squeezed Vacuum generation device |
| CN111190316A (en) * | 2020-02-28 | 2020-05-22 | 太原师范学院 | Continuous variable three-atom ensemble deterministic entanglement generation device |
| CN111474802A (en) * | 2020-05-09 | 2020-07-31 | 山西大学 | Device for simultaneously generating compressed-state light field and entangled-state light field |
| CN113014256A (en) * | 2021-02-23 | 2021-06-22 | 北京无线电计量测试研究所 | Method for preparing spin compression state by cavity coupling atomic system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110032532A1 (en) * | 2007-08-18 | 2011-02-10 | Takuya Hirano | Quantum entanglement generating system and method, and quantum entanglement generating and detecting system and method |
| CN102436117A (en) * | 2011-10-14 | 2012-05-02 | 山西大学 | Generation device for continuous variable quantum entanglement source |
| CN103149773A (en) * | 2013-03-14 | 2013-06-12 | 山西大学 | Device and method for automatically adjusting classical gain in continuous variable quantum entanglement source |
-
2016
- 2016-05-16 CN CN201610321693.3A patent/CN105807535B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110032532A1 (en) * | 2007-08-18 | 2011-02-10 | Takuya Hirano | Quantum entanglement generating system and method, and quantum entanglement generating and detecting system and method |
| CN102436117A (en) * | 2011-10-14 | 2012-05-02 | 山西大学 | Generation device for continuous variable quantum entanglement source |
| CN103149773A (en) * | 2013-03-14 | 2013-06-12 | 山西大学 | Device and method for automatically adjusting classical gain in continuous variable quantum entanglement source |
Non-Patent Citations (2)
| Title |
|---|
| LIANG WU 等: "Experimental generation of tripartite polarization entangled states of bright optical beams", 《APPLIED PHYSICS LETTERS》 * |
| ZHIHUI YAN 等: "Direct production of three-color polarization entanglement for continuous variable", 《JOURNAL OF THE OPTICAL SOCIETY OF AMERICA》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107195324A (en) * | 2017-07-27 | 2017-09-22 | 山西大学 | A kind of high efficiency quantum storing device of continuous variable non-classical optical state |
| CN107346086A (en) * | 2017-07-27 | 2017-11-14 | 山西大学 | The generation device of continuous variable quantum entanglement between quantum channel and quantum nodes |
| CN107346086B (en) * | 2017-07-27 | 2019-06-28 | 山西大学 | The generation device of continuous variable quantum entanglement between quantum channel and quantum nodes |
| CN107272299A (en) * | 2017-07-28 | 2017-10-20 | 山西大学 | The generation device of continuous variable quantum entanglement between multiple atom assemblages |
| CN110133941A (en) * | 2019-04-28 | 2019-08-16 | 山西大学 | A kind of quasi-continuous quantum Squeezed Vacuum generation device |
| CN111190316A (en) * | 2020-02-28 | 2020-05-22 | 太原师范学院 | Continuous variable three-atom ensemble deterministic entanglement generation device |
| CN111190316B (en) * | 2020-02-28 | 2022-05-27 | 太原师范学院 | Continuous variable three-atom ensemble deterministic entanglement generation device |
| CN111474802A (en) * | 2020-05-09 | 2020-07-31 | 山西大学 | Device for simultaneously generating compressed-state light field and entangled-state light field |
| CN111474802B (en) * | 2020-05-09 | 2021-07-02 | 山西大学 | Device for simultaneously generating compressed-state light field and entangled-state light field |
| CN113014256A (en) * | 2021-02-23 | 2021-06-22 | 北京无线电计量测试研究所 | Method for preparing spin compression state by cavity coupling atomic system |
| CN113014256B (en) * | 2021-02-23 | 2023-10-13 | 北京无线电计量测试研究所 | Method for preparing spin compression state by cavity coupling atomic system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105807535B (en) | 2018-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105807535A (en) | Generation device of quantum entanglement among three atomic ensembles | |
| Dorrer et al. | Linear optical sampling | |
| CN105652555A (en) | Continuous variable light and atom ensemble entanglement production device | |
| Galvez et al. | Interference with correlated photons: Five quantum mechanics experiments for undergraduates | |
| CN105044897B (en) | Quick random optical based on sparse constraint is reconstructed into as system and method | |
| CN105676559A (en) | Generating device for entanglement of continuous variable atom ensemble | |
| DE102007059551A1 (en) | Device for measuring the properties of an optical fiber | |
| WO2020232787A1 (en) | Method and system for acquiring frequency domain information of ultra-fast optical field | |
| CN107272299B (en) | The generation device of continuous variable quantum entanglement between multiple atom assemblages | |
| CN107121585A (en) | A kind of electro-optic phase modulator half-wave voltage measuring system and measuring method | |
| Gies et al. | Hidden in the light: Magnetically induced afterglow from trapped chameleon fields | |
| CN110429988A (en) | It is a kind of based on fiber mode conversion all -fiber outside difference detector part | |
| CN107195324A (en) | A kind of high efficiency quantum storing device of continuous variable non-classical optical state | |
| CN102402172A (en) | Three-dimensional real time super-resolution digital holography recording system | |
| Oemrawsingh et al. | High-dimensional mode analyzers for spatial quantum entanglement | |
| CN107346086B (en) | The generation device of continuous variable quantum entanglement between quantum channel and quantum nodes | |
| CN103148940A (en) | Light asynchronous sampling signal measurement method and system | |
| CN102411298A (en) | Three-dimensional real-time super-resolution digital holographic recording method | |
| CN105719719B (en) | The transmitting device of Non-classical States between a kind of continuous variable quantum memory node | |
| CN201107265Y (en) | Collinear femtosecond laser polarization pumping probe system | |
| CN105717344B (en) | A kind of half-wave voltage of phase modulator measuring system and measurement method | |
| CN112649834B (en) | Full-optical solid ultrafast imaging system and method for ICF core self-luminous key process | |
| CN204128686U (en) | A kind of all-fiber Frequency Domain Interferometer | |
| CN104344892B (en) | A kind of full optical fiber Frequency Domain Interferometer | |
| CN103048843B (en) | Continuous variable quantum state frequency transformation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |