CN1232972C - Device for recording adiabatic following stark chirp quantum gate - Google Patents
Device for recording adiabatic following stark chirp quantum gate Download PDFInfo
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- CN1232972C CN1232972C CN 03116898 CN03116898A CN1232972C CN 1232972 C CN1232972 C CN 1232972C CN 03116898 CN03116898 CN 03116898 CN 03116898 A CN03116898 A CN 03116898A CN 1232972 C CN1232972 C CN 1232972C
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- stark
- pulse
- laser
- uterus
- record
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- 239000000523 sample Substances 0.000 claims abstract description 14
- 230000010287 polarization Effects 0.000 claims abstract description 11
- 230000001427 coherent effect Effects 0.000 claims abstract description 9
- 230000003287 optical effect Effects 0.000 claims description 27
- 238000009413 insulation Methods 0.000 claims description 21
- 210000004291 uterus Anatomy 0.000 claims description 21
- 238000005086 pumping Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 230000001808 coupling effect Effects 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims description 6
- 239000013307 optical fiber Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 230000005284 excitation Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000000758 substrate Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 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
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Abstract
The present invention relates to a system for recording quantum information in a controllable manner, and more particularly to an apparatus for adiabatic following stark chirp quantum gate recording. The device sequentially comprises a laser pump source, two laser light sources, two polarization elements, a plane reflection element, a pulse modulator, a convergent lens, a quantum gate encoder and a workpiece medium according to the light propagation direction; and establishing a decorated state by utilizing the stark light pulse, exciting electrons by utilizing the probe light pulse to form an inverted V-shaped combination, wherein the carrier wave of the chirp light pulse carrying recorded information is vertical to the polarization of the stark light pulse and is parallel to the polarization of the probe light pulse, and the working medium is controlled by using proper boundary conditions to realize the quantum gate recording in a coherent state. The device has the characteristics of good confidentiality and large amount of recorded information.
Description
Technical field:
The present invention relates to the system according to controllable way record quantum information, the device of Stark chirp value cervical orifice of uterus record is followed in particularly a kind of thermal insulation.
Background technology:
The people such as (Min Yan) of Yan Min in the prior art observes the non-linear absorption phenomenon of photon switch in having discussed about the Four-level Atom system in " quantum coherent is observed and absorbed photon switch " (Observation of absorptive photon switching by quantuminterference) literary composition, but does not provide a kind of thermal insulation to follow the utility unit of Stark chirp value cervical orifice of uterus record.
Summary of the invention:
The present invention will solve does not have thermal insulation to follow the technical matters of the utility unit of Stark chirp value cervical orifice of uterus record in the prior art, a kind of device that Stark chirp value cervical orifice of uterus writing function is followed in thermal insulation that has is provided, utilize the Stark pulse to set up dressed state (dressed states), form the Λ form families with the probe beam excitation electron again, the carrier wave that chirped pulse carries recorded information is vertical mutually with Stark pulse polarization and be parallel to each other with the probe beam polarization, with suitable boundary conditions Control work medium, realize that the quantum door is recorded in the coherent state.
Technical solution of the present invention is as follows:
The device of Stark chirp value cervical orifice of uterus record is followed in a kind of thermal insulation, and it is characterized in that: this device is that preface comprises laser pumping source, first LASER Light Source, second LASER Light Source, first polarizer, second polarizer, plane reflection element, pulse-modulator, convergent lens, quantum door scrambler, work package medium successively according to optical propagation direction; First LASER Light Source is launched laser and is incided the Stark light pulse that is transmitted through the formation of plane reflection element reflects light through the orthogonal polarized light of first polarizer, the modulation of pulse modulated device is incided on the actuating medium after converging to quantum door scrambler by convergent lens, sets up dressed state; As probe optical pulse, the modulation of pulse modulated device is incided on the actuating medium after converging to quantum door scrambler by convergent lens through the parallel polarized light of first polarizer reflection, and excitation electron forms the combination of Λ form; Second LASER Light Source launches laser after the parallel polarized light of second polarizer reflection forms chirped optical pulse, the modulation of pulse modulated device converges to quantum door scrambler afterwards by inciding on the actuating medium by convergent lens, carry recorded information by the control of controlling recording code device, chirped optical pulse and probe optical pulse are the polarizations that is parallel to each other, and with the Stark light pulse be mutual vertical polarization, chirped optical pulse postpone backward 50% with Stark optical pulse overlap 30%, the nonlinear coupling effects that is formed the Λ form by the probe optical pulse electrons excited forms coherent superposition state, and the information that is recorded that chirped optical pulse 3 carries is recorded in nonlinear coupling effects and forms in the coherent superposition state.
This laser pumping source is laser diode or laser instrument.
This first polarizer and second polarizer are plating polarizing coating level crossing or Ni Keer prism or a Rochon prism or Wollaston prisms.
This plane reflection element is the fully-reflected plane mirror of plating polarizing coating.
First LASER Light Source and second LASER Light Source are optical fiber solid state laser or semiconductor laser or solid-state laser.
This pulse-modulator is to be formed by catoptron, lens, refracting telescope combination.
Said quantum door scrambler is by with door or door, not gate combines.
This actuating medium be have three, atom or ion or the molecule or the semiconductor material of four-level system.
This controlling recording code device is computing machine or automatic control system.
The advantage of the device of Stark chirp value cervical orifice of uterus record is followed in thermal insulation of the present invention:
1, should to have security performance good for this device, has only relevant demoder could extract the information that is write down, and the big characteristics of recorded information amount;
2, it is more that the spendable material of device actuating medium of Stark chirp value cervical orifice of uterus record is followed in thermal insulation;
3, the present invention can be used in the integrated optics system.
Description of drawings:
Fig. 1 is the device most preferred embodiment structural representation that Stark chirp value cervical orifice of uterus record is followed in thermal insulation of the present invention.
Among the figure:
1-laser pumping source 2-first LASER Light Source; 3-first polarizer;
4-plane reflection element; The 5-pulse-modulator; The 6-convergent lens;
7-quantum door scrambler; 8-console panel rotational speed devices; The 9-actuating medium;
The 10-rotating shaft; The 11-substrate plate; 12-controlling recording code device;
13-second polarizer; 14-second LASER Light Source.
Embodiment
See also Fig. 1 earlier, Fig. 1 is the structural representation that the device most preferred embodiment of Stark chirp value cervical orifice of uterus record is followed in thermal insulation of the present invention.As seen from the figure, the device of Stark chirp value cervical orifice of uterus record is followed in thermal insulation of the present invention, comprise, most crucial element is a quantum door scrambler 7, console panel rotational speed devices 8 connects quantum door scrambler 7 and rotating shaft 10, actuating medium 9 is coated on the substrate plate 11, controlling recording code device 12 is according to the instruction control quantum door scrambler 7 of recorded information, what place quantum door scrambler 7 tops is convergent lens 6, convergent lens 6 tops are pulse-modulators 5, what place pulse-modulator 5 tops is that plane reflection element 4, the first LASER Light Source 2 of first polarizer 3 and second polarizer 13 and total reflection and second LASER Light Source 14 and laser pumping source 1 place before first polarizer 3 and second polarizer 13.This device is that preface comprises laser pumping source 1, first LASER Light Source 2 and second LASER Light Source 14, first polarizer 3 and second polarizer 13, plane reflection element 4, pulse-modulator 5, convergent lens 6, quantum door scrambler 7, work package medium 9 successively according to optical propagation direction.
Said first polarizer 3 and second polarizer 13 are plating polarizing coating level crossing or Ni Keer prism or a Rochon prism or Wollaston prisms.
Said plane reflection element 4 is fully-reflected plane mirrors of plating polarizing coating.
Said first LASER Light Source 2 and second LASER Light Source 14 are optical fiber solid state laser or semiconductor laser or other solid-state laser.
Said laser pumping source 1 is laser diode or other laser instrument.
Said pulse-modulator 5 is formed by a series of catoptrons, lens, refracting telescope combination, or optical fiber combination (length of arranging optical element or decision optical fiber according to pulse overlap and leading needs) that forms.
Said quantum door scrambler 7 is by with door or door, not gate forms (using scale-of-two).
Said actuating medium 9 be have three, atom, ion, molecule or the semiconductor material of four-level system (outermost electron is an electronics, or outermost electron differs from an electronics and just obtains filled shell).
Said controlling recording code device 12 is computing machines, or automatic control system (using scale-of-two).
The course of work that the device of Stark chirp value cervical orifice of uterus record is followed in thermal insulation of the present invention is:
After first LASER Light Source 2 is launched laser, incide most of transmission, on first polarizer 3 of small part reflection, be transmitted through the Stark light pulse I of plane reflection element 4 reflected light formation through the orthogonal polarized light of first polarizer 3
1, 5 modulation of pulse modulated device are incided on the actuating medium 9 after converging to quantum door scrambler 7 by convergent lens 6, set up dressed state (eigenstate of system after light field and atom, ion, the interaction of molecules); Through the parallel polarized light of the fraction of first polarizer 3 reflection as probe optical pulse I
2, 5 modulation of pulse modulated device are incided on the actuating medium 9 after converging to quantum door scrambler 7 by convergent lens 6, and excitation electron forms the combination of Λ form; Second LASER Light Source 14 launches laser after the parallel polarized light of second polarizer, 13 reflections forms chirped optical pulse I
3, 5 modulation of pulse modulated device are incided on the actuating medium 9 after converging to quantum door scrambler 7 by convergent lens 6, carry recorded information (pulse carrier frequency), chirped optical pulse I by 12 controls of controlling recording code device
3With probe optical pulse I
2Be the polarization that is parallel to each other, and with Stark light pulse I
1Be mutual vertical polarization, chirped optical pulse I
3Postpone backward 50% with Stark light pulse I
1Overlapping 30%, by probe optical pulse I
2The nonlinear coupling effects that electrons excited forms the Λ form forms coherent superposition state, chirped optical pulse I
3The information that is recorded of carrying is recorded in nonlinear coupling effects and forms in the coherent superposition state.
In use, first LASER Light Source, 2 usefulness solid state lasers are made light source, and Shu Chu wavelength is at 795nm simultaneously, output power 20.081mW.Be transmitted through the Stark light pulse I of plane reflection element 4 through first polarizer 3
1Power be 20mW, be 1 μ W through the probe optical pulse of first polarizer 3 reflection, loss 0.08mW.Second LASER Light Source, 14 usefulness solid state lasers are made light source, and Shu Chu wavelength is at 780nm simultaneously, spot diameter 3mm, and pulse width is 200 μ s, pulse-modulator 5 is controlled at I
2And I
3Two light pulses have 50% overlapping, Stark light pulse I
1Leading 40% pulsewidth.Actuating medium is rubidium (Rb) atom, record 0110001 (binary coding).
Claims (9)
1, the device of Stark chirp value cervical orifice of uterus record is followed in a kind of thermal insulation, and it is characterized in that: this device is that preface comprises laser pumping source (1), first LASER Light Source (2), second LASER Light Source (14), first polarizer (3), second polarizer (13), plane reflection element (4), pulse-modulator (5), convergent lens (6), quantum door scrambler (7), work package medium (9) successively according to optical propagation direction; First LASER Light Source (2) is launched laser and is incided the Stark light pulse (I that is transmitted through the formation of plane reflection element (4) reflected light through the orthogonal polarized light of first polarizer (3)
1), pulse modulated device (5) modulation converges to quantum door scrambler (7) by convergent lens (6) and incides afterwards on the actuating medium (9), sets up dressed state; Through the parallel polarized light of first polarizer (3) reflection as probe optical pulse (I
2), pulse modulated device (5) modulation converges to quantum door scrambler (7) by convergent lens (6) and incides afterwards on the actuating medium (9), and excitation electron forms the combination of Λ form; Second LASER Light Source (14) launches laser after the parallel polarized light of second polarizer (13) reflection forms chirped optical pulse (I
3), pulse modulated device (5) modulation converges to quantum door scrambler (7) afterwards by inciding on the actuating medium (9) by convergent lens (6), carries recorded information, chirped optical pulse (I by controlling recording code device (12) control
3) and probe optical pulse (I
2) be the polarization that is parallel to each other, and with Stark light pulse (I
1) be mutual vertical polarization, chirped optical pulse (I
3) postpone backward 50% with Stark light pulse (I
1) overlapping 30%, by probe optical pulse (I
2) the electrons excited nonlinear coupling effects that forms the Λ form forms coherent superposition state, chirped optical pulse (I
3) information that is recorded of carrying is recorded in nonlinear coupling effects and forms in the coherent superposition state.
2, the device of Stark chirp value cervical orifice of uterus record is followed in thermal insulation according to claim 1, and it is characterized in that: this laser pumping source (1) is laser diode or laser instrument.
3, the device of Stark chirp value cervical orifice of uterus record is followed in thermal insulation according to claim 1, it is characterized in that: this first polarizer (3) and second polarizer (13) are plating polarizing coating level crossing or Ni Keer prism or a Rochon prism or Wollaston prisms.
4, the device of Stark chirp value cervical orifice of uterus record is followed in thermal insulation according to claim 1, it is characterized in that: this plane reflection element (4) is the fully-reflected plane mirror of plating polarizing coating.
5, the device of Stark chirp value cervical orifice of uterus record is followed in thermal insulation according to claim 1, and it is characterized in that: first LASER Light Source (2) and second LASER Light Source (14) are optical fiber solid state laser or semiconductor laser or solid-state laser.
6, the device of Stark chirp value cervical orifice of uterus record is followed in thermal insulation according to claim 1, it is characterized in that: this pulse-modulator (5) is to be formed by catoptron, lens, refracting telescope combination.
7, the device of Stark chirp value cervical orifice of uterus record is followed in thermal insulation according to claim 1, it is characterized in that: said quantum door scrambler (7) is by combining with door or door, not gate.
8, the device of Stark chirp value cervical orifice of uterus record is followed in thermal insulation according to claim 1, it is characterized in that: this actuating medium (9) be have three, atom or ion or the molecule or the semiconductor material of four-level system.
9, the device of Stark chirp value cervical orifice of uterus record is followed in thermal insulation according to claim 1, and it is characterized in that: this controlling recording code device (12) is computing machine or automatic control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116898 CN1232972C (en) | 2003-05-14 | 2003-05-14 | Device for recording adiabatic following stark chirp quantum gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116898 CN1232972C (en) | 2003-05-14 | 2003-05-14 | Device for recording adiabatic following stark chirp quantum gate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1450546A CN1450546A (en) | 2003-10-22 |
| CN1232972C true CN1232972C (en) | 2005-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03116898 Expired - Fee Related CN1232972C (en) | 2003-05-14 | 2003-05-14 | Device for recording adiabatic following stark chirp quantum gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1232972C (en) |
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2003
- 2003-05-14 CN CN 03116898 patent/CN1232972C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1450546A (en) | 2003-10-22 |
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Granted publication date: 20051221 Termination date: 20100514 |