CN220895074U - Teaching presentation device of source is entangled to quantum - Google Patents
Teaching presentation device of source is entangled to quantum Download PDFInfo
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- CN220895074U CN220895074U CN202322551535.5U CN202322551535U CN220895074U CN 220895074 U CN220895074 U CN 220895074U CN 202322551535 U CN202322551535 U CN 202322551535U CN 220895074 U CN220895074 U CN 220895074U
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Abstract
The utility model belongs to the technical field of quantum information, and provides a teaching demonstration device of a quantum entanglement source, which comprises a shell, glass for a first suspension imaging, glass for a second suspension imaging, glass for a third suspension imaging, glass for a fourth suspension imaging, a laser, entanglement source generation light paths, a double-channel coincidence counter, a computing device, a first display, a second display, a third display and a fourth display, wherein the laser, entanglement source generation light paths, the double-channel coincidence counter and the computing device are arranged in the shell and are sequentially connected; the glass used for the first suspension imaging, the glass used for the second suspension imaging, the glass used for the third suspension imaging and the glass used for the fourth suspension imaging form an inverted prismatic table and are arranged at the top of the shell; the first display, the second display, the third display and the fourth display are respectively arranged around the top of the shell. The problem that the quantum entanglement source teaching device is not visual, specific and image enough in display is solved.
Description
Technical Field
The utility model belongs to the technical field of quantum information, and particularly relates to a teaching demonstration device for a quantum entanglement source.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
There are various methods for generating quantum entanglement, one of them adopts an optical parametric amplification technology, the technology is based on BBO crystal or PPKTP crystal, one polarized light is subjected to optical parametric down-conversion, the entangled photon number is obtained through a single photon detector, the phenomenon of quantum entanglement is represented by coincidence counting, and the phenomenon is represented as a whole by photoelectric devices such as a laser, an optical element, a detector and the like.
The patent with publication number CN 213781393U and name of a quantum entanglement teaching demonstration teaching aid adopts a model method to demonstrate quantum entanglement, and has no real entanglement source generating device; the patent with publication number CN 211787768U and name of "quantum entanglement demonstration science popularization instrument" adopts the method of using electronic sensor to sense and display data state with display to display quantum entanglement, and there is no real entanglement source generating device; the utility model has the advantages of the utility model discloses a CN 111540037A, a virtual simulation method for quantum optical teaching, and a CN 110428710A, a virtual simulation method for quantum entanglement source, which are based on the entanglement source actual generation device to perform 3D modeling simulation, simulate the generation process and state of entanglement source, and have the entanglement source generation device and model display, the visualization is further improved, but the display effect is still abstract, and the quantum entanglement display is still not intuitive, specific and vivid, so that the understanding of learners on quantum entanglement is relatively hard.
Disclosure of utility model
The utility model provides a teaching demonstration device for quantum entanglement sources, which aims to solve the problems that the quantum entanglement source teaching device is not visual, specific and visual during display.
According to some embodiments, the present utility model employs the following technical solutions:
in a first aspect, a teaching demonstration device for quantum entanglement source is provided, including a housing, glass for first suspension imaging, glass for second suspension imaging, glass for third suspension imaging, glass for fourth suspension imaging, a laser, entanglement source generation light path, a dual-channel coincidence counter and a computing device, which are arranged in the housing and are sequentially connected, and a first display, a second display, a third display and a fourth display which are respectively connected with the computing device;
the glass used for the first suspension imaging, the glass used for the second suspension imaging, the glass used for the third suspension imaging and the glass used for the fourth suspension imaging form an inverted prismatic table and are arranged at the top of the shell;
The first display, the second display, the third display and the fourth display are respectively arranged around the top of the shell and respectively correspond to the positions of the glass used for the first suspension imaging, the glass used for the second suspension imaging, the glass used for the third suspension imaging and the glass used for the fourth suspension imaging.
Further, the shell is a trapezoidal table shell.
Further, the optical device for generating the optical path by the entanglement source comprises periodically polarized potassium titanyl phosphate crystals.
Further, the dual-channel coincidence counter contains two-way single photon detectors.
Further, the laser is used for outputting blue-violet light with a fixed center wavelength.
Further, the computing device comprises a second computer and a third computer which are connected in sequence;
The second computer is connected with the dual-channel coincidence counter and a touchable display screen;
The third computer is connected with the first display, the second display, the third display and the fourth display.
Further, the touchable display screen is arranged in a window formed in the second side face of the shell.
Further, the third computer is also connected with a touch display integrated machine;
the touch display integrated machine is arranged in a window formed in the third side face of the shell.
Further, the touch display integrated machine is also connected with a player;
the player is arranged in a window formed in the third side face of the shell.
Further, the dual-channel coincidence counter is also sequentially connected with a first computer and a transparent touchable display screen;
The transparent touch display screen is arranged in a window formed in the first side face of the shell, and the first computer is arranged in the shell.
Compared with the prior art, the utility model has the beneficial effects that:
According to the teaching demonstration device for the quantum entanglement source, provided by the utility model, through the glass for the first suspension imaging, the glass for the second suspension imaging, the glass for the third suspension imaging and the glass for the fourth suspension imaging which form the inverted prism table, and the laser, the entanglement source generation light path, the double-channel coincidence counter, the computing equipment, the first display, the second display, the third display and the fourth display which are respectively connected with the computing equipment and correspond to the positions of the glass, the image of the quantum entanglement source generation process is suspended in the live half-air imaging, the illusion and true atmosphere is created, the intense depth sense is realized, the secret of the microscopic world is presented, and the problem that the quantum entanglement source teaching device is not intuitive, concrete and vivid in display is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a diagram of a hardware connection of the present utility model;
FIG. 2 is a perspective view of a teaching demonstration device of a quantum entanglement source of the present utility model;
FIG. 3 is a top view of a teaching demonstration device of a quantum entanglement source of the present utility model;
FIG. 4 is a right side view of a teaching demonstration device of a quantum entanglement source of the present utility model;
Fig. 5 is a front view of a teaching demonstration device of a quantum entanglement source of the present utility model.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the term "comprising" when used in this specification is taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
In the present utility model, terms such as "upper", "vertical", "horizontal", "upward", "downward", etc., refer to an azimuth or a positional relationship based on that shown in the drawings, and are merely relational terms used for convenience in describing structural relationships of the components or elements of the present utility model, and do not denote any one of the components or elements of the present utility model, but should not be construed as limiting the present utility model.
In the present utility model, terms such as "fixed," "fixedly attached," and the like are to be construed broadly and mean either fixedly attached or integrally attached or removably attached. The specific meaning of the terms in the present utility model can be determined according to circumstances by a person skilled in the relevant art or the art, and is not to be construed as limiting the present utility model.
Example 1
The embodiment provides a teaching demonstration device for a quantum entanglement source.
This embodiment takes a quantum entanglement source based on PPKTP crystals as an example. As shown in fig. 1, a teaching demonstration device for quantum entanglement source includes: the device comprises a shell, a laser 1 with the wavelength of 405nm, a start button 2, a PPKTP entanglement source generation light path 3, a transparent touchable display screen 4, a first computer (computer 1) 5, a dual-channel coincidence counter 6, a second computer (computer 2) 7, a touchable display screen 8, a third computer (computer 3) 9, a touch display integrated machine 10, a player 11, a first display (display 1) 12, a second display (display 2) 14, a third display (display 3) 16, a fourth display (display 4) 18, a first glass for suspension imaging (glass for suspension imaging 1) 13, a second glass for suspension imaging (glass for suspension imaging 2) 15, a third glass for suspension imaging (glass for suspension imaging 3) 17 and a fourth glass for suspension imaging (glass for suspension imaging 4) 19.
The second computer 7 and the third computer 9 constitute a computing device.
As shown in fig. 2, 3, 4 and 5, the housing is a trapezoidal table housing. A window is formed on the first side surface of the shell and is used for setting a transparent touchable display screen 4; the second side of the shell is provided with a window and a through hole which are respectively used for setting a touchable display 8 and a starting button 2; the third side of the housing is provided with two windows for the provision of a touch display all-in-one 10 and a player 11 (not shown in the figures), respectively.
The laser 1 with the wavelength of 405nm, the PPKTP (periodically polarized titanyl potassium phosphate, periodically Poled KTP) entanglement source generation light path 3, the first computer 5, the double-channel coincidence counter 6, the second computer 7 and the third computer 9 are all arranged in the shell.
Baffle plates are fixedly connected to the periphery of the top surface of the shell, the baffle plates are perpendicular to the top surface of the shell, and the first display 12, the second display 14, the third display 16 and the fourth display 18 are arranged on the top surface of the shell and are parallel to the top surface of the shell.
The baffle plates around the top surface of the shell are in vertical relation with the plane where the display is located, so that the sight of a person is shielded, and the eyes of the person are prevented from directly seeing the display picture, and the watching effect of suspension imaging is affected. The included angle between the glass used for suspension imaging and the plane of the display is controlled between 30 degrees and 75 degrees, and the imaging effect is good.
The glass 13 for the first suspension imaging, the glass 15 for the second suspension imaging, the glass 17 for the third suspension imaging and the glass 19 for the fourth suspension imaging form inverted prism tables, are arranged at the top of the shell, and correspond to the positions of the glass 13 for the first suspension imaging, the glass 15 for the second suspension imaging, the glass 17 for the third suspension imaging and the glass 19 for the fourth suspension imaging respectively to the first display 12, the second display 14, the third display 16 and the fourth display 18.
The starting button 2 is used for connecting a power supply with each computer, a laser 1 with the wavelength of 405nm, a double-channel coincidence counter 6, a touchable display screen 8, a transparent touchable display screen 4, a touch display integrated machine 10, each display, a player 11 and the like. For the sake of brevity and clarity, the corresponding connection lines are not shown in fig. 1. The start button 2 corresponds to a main power supply switch and is connected with the short-circuit protector in the shell and is used for controlling the power supply of all devices in the shell. When the start button 2 is pressed, the quantum entanglement source teaching demonstration device is powered on and initialized.
The laser 1 with the wavelength of 405nm, the PPKTP entanglement source generation light path 3, the double-channel coincidence counter 6, the first computer 5 and the transparent touchable display screen 4 are sequentially connected.
The laser 1 having a wavelength of 405nm is used to output blue-violet light having a center wavelength of 405nm and an average power of 5mw or more.
The PPKTP entanglement source generation light path 3 is used for generating quantum entanglement photon pairs with the wavelength of 810nm after receiving blue-violet light.
The dual-channel coincidence counter 6 is used for receiving quantum entangled photon pairs, namely, receiving each path of single photon signal in the PPKTP entangled source generation light path 3, and detecting and calculating coincidence counting data according to the single photon signals; the first computer 5 is configured to receive the data of the two-channel coincidence counter 6, obtain a track of the entanglement source, and display the track through the transparent touchable display screen 4.
After the quantum entanglement source teaching demonstration device is electrified, the laser 1 with the wavelength of 405nm outputs blue-violet light with the central wavelength of 405nm and the average power of more than 5 mw; blue-violet light output by the laser 1 with the wavelength of 405nm enters the PPKTP entanglement source generation light path 3, a core optical device of the PPKTP entanglement source generation light path 3 is a periodically polarized potassium titanyl phosphate (PPKTP) crystal, quantum entanglement photon pairs with the wavelength of 810nm are generated through optical parameter down-conversion, and the generated quantum entanglement source photon pairs have the advantages of high brightness and high polarization contrast. The PPKTP entanglement source generation optical path 3 is related to the prior art, for example, see the related content in "study of free space quantum communication experiments" (D Yin Juan, university of chinese science and technology, 2009), and will not be described herein. The quantum entangled photon pair generated by the PPKTP entangled source generation light path 3 enters a double-channel coincidence counter 6, the double-channel coincidence counter 6 comprises two paths of single photon detectors, two paths of single photon signals can be collected simultaneously, coincidence counting data can be obtained, and the coincidence counting data is uploaded to a first computer 5 through a serial port communication means and displayed by a transparent touchable display screen 4.
The transparent touchable display screen 4 has transparent, display and touchable functions, mainly can display the formation track of the entanglement source in real time, and can click any position point forming the track, when the position point is consistent with the optical element in the optical path 3 generated by the PPKTP entanglement source, the transparent touchable display screen 4 displays the parameter information and functions of the optical element (such as PPKTP crystal), so that an operator can learn and understand conveniently.
The two-channel coincidence counter 6 is also connected with a second computer 7, and the second computer 7 is also connected with a touchable display screen 8.
The double-channel coincidence counter 6 is used for obtaining coincidence counting data after receiving quantum entangled photon pairs; the second computer 7 is configured to receive the coincidence count data, calculate and obtain calculation results of bell inequality, quantum entanglement degree, density matrix, horizontal polarization contrast, vertical polarization contrast, entanglement degree matrix, polarization associated data, and the like, display the calculation results through the touchable display 8, generate a three-dimensional animation playing instruction, and upload the three-dimensional animation playing instruction to the third computer 9.
When the two-channel coincidence counter 6 collects entangled photon pair data, the two-channel coincidence counter 6 transmits the entangled photon pair data to the second computer 7 through serial communication, the second computer 7 performs data acquisition and related calculation, including bell inequality, entanglement degree, density matrix, polarization contrast, polarization associated data and the like, and related data of a calculation result are displayed in a numerical value, curve, three-dimensional graph and the like through the touchable display screen 8.
As the wave plates with different rotation angles influence the entangled photon result, computer software in the second computer 7 can control the PPKTP entangled source to generate rotation fluctuation angles of the half wave plate, the quarter wave plate and the polaroid in the light path 3, thereby realizing the up-down linkage function, and the more the collected coincidence counting data, the higher the entangled degree, the brighter the light intensity of the entangled source in the suspended imaging picture.
The quantum entanglement source three-dimensional suspension projection display system consists of a third computer 9, a first display 12, a second display 14, a third display 16, a fourth display 18, glass 13 for first suspension imaging, glass 15 for second suspension imaging, glass 17 for third suspension imaging and glass 19 for fourth suspension imaging. The third computer 9 is connected to the second computer 7, and the first display 12, the second display 14, the third display 16, and the fourth display 18 are connected to the third computer 9, respectively.
The glass 13 for the first suspension imaging, the glass 15 for the second suspension imaging, the glass 17 for the third suspension imaging and the glass 19 for the fourth suspension imaging form inverted prism tables.
The third computer 9 is configured to obtain, after receiving the three-dimensional animation playing instruction, a picture of the model of the entanglement source generation process at four angles according to the calculation result of the second computer 7.
The first display 12, the second display 14, the third display 16, and the fourth display 18 respectively receive the first angle screen, the second angle screen, the third angle screen, and the fourth angle screen, and then respectively display and project the first angle screen, the second angle screen, the third angle screen, and the fourth angle screen onto the first glass for suspension imaging 13, the second glass for suspension imaging 15, the third glass for suspension imaging 17, and the fourth glass for suspension imaging 19.
The third computer 9 obtains the data of coincidence count, entanglement degree, density matrix and the like calculated by the second computer 7, dynamically changes different frames according to the actual operation of the entanglement source (entanglement source generation) process, performs software processing by constructing a three-dimensional model based on the spectroscope imaging principle, obtains different angle pictures (pictures of four angles) of the entanglement source generation process, and sends the pictures to each display respectively.
The first display 12, the second display 14, the third display 16 and the fourth display 18 are used for playing pictures of different angles of the entanglement source generation process, and the glass 13 for the first suspension imaging, the glass 15 for the second suspension imaging, the glass 17 for the third suspension imaging and the glass 19 for the fourth suspension imaging are respectively used for projecting pictures played by the first display 12, the second display 14, the third display 16 and the fourth display 18.
The images generated in the quantum entanglement source generating process are suspended in the mid-air imaging of the live-action, so that a fantasy and genuine atmosphere is created, a strong depth sense is provided, and the mysterious of the microscopic world is displayed; and the brightness change of entanglement degree is changed according to the number of entangled photon pairs. The picture played by the display is positioned at the bottom of the glass used for suspension imaging, the glass used for suspension imaging is transparent, an observer stands on the same horizontal plane of the shell, and the appreciation angle is best looking up.
The third computer 9 is also connected with a touch display integrated machine 10, and the touch display integrated machine 10 is also connected with a player 11. The player is equivalent to a sound and is used for playing the entanglement source teaching propaganda film sound.
The touch display integrated machine 10 is used for running comprehensive display software such as quantum entanglement teaching propaganda sheets, quantum entanglement operation mechanism interactive games and the like, and the teaching propaganda sheets are taught in an animation and sound mode, so that the teaching propaganda sheets are vivid and visual.
The quantum entanglement operation mechanism interactive game is developed based on unit software, three-dimensional modeling is firstly carried out on each optical element in a PPKTP entanglement source generation light path 3, an operator places each model according to the corresponding position according to the actual light path requirement of the entanglement source, and when the optical element is consistent with the entanglement source light path and successfully establishes a preparation model of the entanglement source, the touch display integrated machine 10 uploads a three-dimensional animation playing instruction to a third computer 9 so as to trigger a quantum entanglement source three-dimensional suspension projection display system to play a three-dimensional animation in the quantum entanglement source generation process. And each corresponding picture of the quantum entanglement source generation process animation is prestored in each display, and three-dimensional suspension imaging display of the quantum entanglement source generation process animation can be realized through glass used for each suspension imaging.
According to the teaching demonstration device of the quantum entanglement source, provided by the embodiment, the running track of the optical path can be observed in real time through the transparent touch screen.
According to the teaching demonstration device for the quantum entanglement source, provided by the embodiment, the quantum entanglement generation process is simulated by adopting the three-dimensional animation, and the quantum entanglement generation process is displayed more vividly and intuitively through the display of the three-dimensional suspension imaging animation process, so that the teaching demonstration device is convenient to understand.
According to the teaching demonstration device for the quantum entanglement source, which is provided by the embodiment, observers or learners can participate in the quantum entanglement actual process, and experience entanglement mechanism through the steps of interactive operation, so that the learners can conveniently participate in the quantum entanglement design directly.
According to the teaching demonstration device for the quantum entanglement source, provided by the embodiment, the preparation state of the entanglement source can be linked with suspension imaging in real time, and entanglement degree can be represented by brightness of entanglement points of the suspension imaging.
According to the teaching demonstration device for the quantum entanglement source, when the preparation model of the entanglement source is successfully established, the suspension projection demonstration system can be triggered to play three-dimensional animation, and linkage is carried out with suspension imaging.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The teaching demonstration device for the quantum entanglement source is characterized by comprising a shell, glass for a first suspension imaging, glass for a second suspension imaging, glass for a third suspension imaging, glass for a fourth suspension imaging, a laser, entanglement source generation light path, a double-channel coincidence counter and computing equipment, and a first display, a second display, a third display and a fourth display which are respectively connected with the computing equipment, wherein the laser, entanglement source generation light path, double-channel coincidence counter and computing equipment are arranged in the shell and are sequentially connected;
the glass used for the first suspension imaging, the glass used for the second suspension imaging, the glass used for the third suspension imaging and the glass used for the fourth suspension imaging form an inverted prismatic table and are arranged at the top of the shell;
The first display, the second display, the third display and the fourth display are respectively arranged around the top of the shell and respectively correspond to the positions of the glass used for the first suspension imaging, the glass used for the second suspension imaging, the glass used for the third suspension imaging and the glass used for the fourth suspension imaging.
2. The teaching demonstration device of claim 1, wherein the housing is a trapezoidal table housing.
3. The teaching demonstration device of claim 1, wherein the optical device for generating the optical path of the entanglement source comprises periodically poled potassium titanyl phosphate crystals.
4. The teaching demonstration device of claim 1, wherein the dual channel coincidence counter comprises two single photon detectors.
5. The teaching demonstration device of claim 1, wherein the laser is configured to output blue-violet light of a fixed center wavelength.
6. The teaching demonstration device of claim 1, wherein the computing device comprises a second computer and a third computer connected in sequence;
The second computer is connected with the dual-channel coincidence counter and a touchable display screen;
The third computer is connected with the first display, the second display, the third display and the fourth display.
7. The teaching demonstration device of claim 6, wherein the touchable display screen is disposed in a window formed in the second side of the housing.
8. The teaching demonstration device of a quantum entanglement source according to claim 6, wherein the third computer is further connected with a touch display integrated machine;
the touch display integrated machine is arranged in a window formed in the third side face of the shell.
9. The teaching demonstration device of a quantum entanglement source according to claim 8, wherein the touch display integrated machine is further connected with a player;
the player is arranged in a window formed in the third side face of the shell.
10. The teaching demonstration device of a quantum entanglement source according to claim 1, wherein the two-channel coincidence counter is further connected with a first computer and a transparent touchable display screen in sequence;
The transparent touch display screen is arranged in a window formed in the first side face of the shell, and the first computer is arranged in the shell.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322551535.5U CN220895074U (en) | 2023-09-19 | 2023-09-19 | Teaching presentation device of source is entangled to quantum |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322551535.5U CN220895074U (en) | 2023-09-19 | 2023-09-19 | Teaching presentation device of source is entangled to quantum |
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| CN220895074U true CN220895074U (en) | 2024-05-03 |
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| CN202322551535.5U Active CN220895074U (en) | 2023-09-19 | 2023-09-19 | Teaching presentation device of source is entangled to quantum |
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