CN111540037B - Live-action virtual simulation method for quantum optical teaching - Google Patents
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Abstract
The invention relates to a live-action virtual simulation method for quantum optical teaching, which comprises the steps of firstly, carrying out 3D modeling on a quantum optical experimental instrument, an experimental environment and an optical path; selecting a quantum optical target experiment, and drawing a two-dimensional light path diagram of the target experiment; recording a core computing function; selecting an experimental instrument, an experimental environment and working parameters of the experimental instrument according to a two-dimensional optical path of a target experiment, performing 3D modeling on the optical path of the target experiment, and completing the input of the calculated parameters in a core calculation function in the process of selecting the experimental instrument, the experimental environment and the working parameters of the experimental instrument; and matching the corresponding light path 3D model according to the output of the core calculation function, and performing position matching on the light path 3D model, an experimental instrument and an experimental environment to finish the simulation model output of the target experiment. The method can finish 3D modeling output of quantum optical target experiments, and can improve teaching level and student learning efficiency in traditional quantum optical and quantum information experiment teaching.
Description
Technical Field
The invention relates to the technical field of quantum optical experiment simulation, in particular to a live-action virtual simulation method for quantum optical teaching.
Background
Quantum information is one of important directions of scientific research development in China in recent years. Quantum optics is an important component in quantum information research. In the educational popularization process of quantum optics, the physical optical experimental equipment has the problems of high price, severe requirements on experimental environment, easy damage, incapability of visualizing quantum optical signals and the like. In order to solve the above problems, virtual simulation technology for guiding and simulating experimental instruments, experimental devices and experimental environments by using computer and multimedia technologies is beginning to be applied to the fields of quantum optics and quantum information. However, the prior virtual simulation [1,2] for quantum optics and quantum information is limited to two-dimensional images, and has no stereoscopic impression; the quantum light signal is not visually displayed; the software interface design interaction is too hard and monotonous and complex; while no specific experimental lectures, experimental procedures and data processing software are provided in the software.
Disclosure of Invention
The invention aims to solve the technical problem of providing a live-action virtual simulation method for quantum optical teaching, which can finish the dynamic output of a 3D simulation model of a quantum optical target experiment and has the advantages of convenience and quickness in interactive design and intuitionistic and effective experimental display.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a real scene virtual simulation method for quantum optical teaching, includes the experimental simulation module in the intelligent mobile terminal, experimental simulation module in realize virtual simulation step as follows:
step 1, 3D modeling is carried out on a quantum optical experimental instrument, an experimental environment and an optical path;
step 2, selecting a quantum optical target experiment, and drawing a two-dimensional light path diagram of the target experiment;
step 3, inputting a core calculation function, wherein the core calculation function is used for calculating an output value of a corresponding experimental instrument according to the change of parameters or states of the specific experimental instrument in the experimental process of a user;
step 4, selecting an experimental instrument, an experimental environment and working parameters of the experimental instrument according to the two-dimensional optical path of the target experiment, performing 3D modeling on the optical path of the target experiment, and completing the input of the calculated parameters in the core calculation function in the process of selecting the experimental instrument, the experimental environment and the working parameters of the experimental instrument;
and 5, matching the corresponding light path 3D model according to the output of the core calculation function, and performing position matching on the light path 3D model, an experimental instrument and an experimental environment to finish the simulation model output of the target experiment.
As a further improved technical scheme of the invention, the experimental instrument, the experimental environment and the 3D model of the light path in the step 1 are all subjected to geometric modeling according to the size of an actual physical device; the light path model comprises all models of an input light path and an output light path of the target experimental instrument.
As a further improved technical solution of the present invention, the objective experiments of quantum optics in the step 2 include, but are not limited to, quantum entanglement light source experiments, bell inequality violation tests, HBT experiments and quantum key distribution experiments based on different protocols.
As a further improved technical scheme of the invention, the core calculation function is recorded through an input window of the intelligent mobile terminal.
As a further improved technical scheme of the invention, the working parameters of the experimental instrument and the experimental environment in the simulation model of the target experiment in the step 5 can be adjusted, and the corresponding light path model can be dynamically adjusted according to the output of the core calculation function in the adjustment process.
As a further improved technical scheme of the invention, the intelligent mobile terminal realizes the simulation model output of the quantum optical target experiment through a visual screen, and the quantum optical target experiment realizes the data input through the mouse and keyboard operation.
As a further improved technical scheme of the invention, the intelligent mobile terminal also comprises an exhibition module and a collection module, wherein the collection module is used for collecting input and output data in the target experiment simulation process; the exhibition module is used for visually outputting experimental lectures, experimental steps, experimental input and output data.
The live-action virtual simulation method for quantum optical teaching has the beneficial effects that: the input of experimental data is completed by constructing an experimental 3D model, corresponding experimental result data is obtained through core calculation function calculation, and finally, a corresponding experimental light path is matched through the experimental result data, the experimental light path is matched with the constructed 3D model for output, and finally, the 3D modeling output of a quantum optical target experiment is completed. The problems that experimental phenomena are not visual, expensive and can not be operated repeatedly in traditional quantum optics and quantum information experimental teaching are solved, and the teaching level and the learning efficiency of students are improved. Meanwhile, the invention solves the problem that the existing quantum optical virtual simulation software is limited to two-dimensional images, and the quantum optical signals and experimental environments cannot be intuitively displayed. Meanwhile, under the condition of three-dimensional modeling, the convenience of operation and the convenience of interactive design are effectively ensured. Specific experimental lectures, experimental steps, core calculation functions and the like are provided in the software.
Drawings
Fig. 1 is a schematic diagram of a three-dimensional experimental light path established by an experimental instrument in a live-action virtual simulation method for quantum optical teaching.
Fig. 2 is a schematic diagram of a two-dimensional experimental light path in a real-scene virtual simulation method for quantum optical teaching.
Fig. 3 is a flow chart of a target experiment simulation in a live-action virtual simulation method for quantum optical teaching.
Detailed Description
The invention is further described below with reference to the drawings and specific preferred embodiments.
The utility model provides a real scene virtual simulation method for quantum optical teaching, includes the experiment simulation module in the intelligent mobile terminal, the realization virtual simulation step in the experiment simulation module is as shown in figure 3, concretely as follows:
step 1, 3D modeling is carried out on a quantum optical experimental instrument, an experimental environment and an optical path;
step 2, selecting a quantum optical target experiment, and drawing a two-dimensional light path diagram of the target experiment;
step 3, inputting a core calculation function, wherein the core calculation function is used for calculating an output value of a corresponding experimental instrument according to the change of parameters or states of the specific experimental instrument in the experimental process of a user;
step 4, selecting an experimental instrument, an experimental environment and working parameters of the experimental instrument according to the two-dimensional optical path of the target experiment, performing 3D modeling on the optical path of the target experiment, and completing the input of the calculated parameters in the core calculation function in the process of selecting the experimental instrument, the experimental environment and the working parameters of the experimental instrument;
and 5, matching the corresponding light path 3D model according to the output of the core calculation function, and performing position matching on the light path 3D model, an experimental instrument and an experimental environment to finish the simulation model output of the target experiment.
Further, in the step 1, the experimental instrument and the experimental environment perform computer 3D modeling according to the material, the shape and the light transmittance of the actual physical device, and the experimental light path modeling includes the possibility of the light path possibly output by each experimental instrument, including the shape and the propagation path of the light beam possibly output by each experimental instrument. And the 3D models of the experimental instrument, the experimental environment and the optical path are subjected to geometric modeling according to the size of an actual physical device.
The target experiments of quantum optics described in step 2 include, but are not limited to, quantum entanglement light source experiments, bell inequality violation tests, HBT experiments, and quantum key distribution experiments based on different protocols. Specific experimental contents, experimental steps and experimental data are listed after a required target experiment is selected, and the experimental contents, the experimental steps and the experimental data can be displayed in a display screen of a simulation terminal through a display module before experimental simulation, wherein a display mode generally adopts a video window or a text window. And further, a two-dimensional simulation experiment light path is obtained, as shown in fig. 2, the placing sequence of the experimental instrument and relevant experimental parameters are determined, and the two-dimensional simulation experiment light path can be displayed by using a picture window through a display module. The method is beneficial to students to know the related content of the target experiment before the experiment.
The deduction process of the core calculation function expression in the step 3 is as follows: the designer determines the physical quantity of the final experimental measurement data according to the experimental device and the device, such as the coincidence count of a single photon detector in a quantum entanglement source experiment, and according to the experimental light path diagram in the last step, the quantitative function or mathematical expression of the experimental measurement physical quantity changed along with the parameter change of the experimental device. Furthermore, a calculation function expression of each experimental instrument related parameter can be deduced, i.e. the output parameter of the experimental instrument corresponding to the situation can be obtained when the input parameter of one experimental instrument and the parameter of the experimental instrument are known in the data layer.
In step 4, the user performs selection and matching processes of the experimental apparatus, the experimental environment and working parameters of the experimental apparatus through hardware equipment of the simulation terminal, wherein the hardware equipment comprises, but is not limited to, a mouse, a keyboard or a VR handle equipment of a personal computer, clicking and other operations are performed on the state of the apparatus in a user interaction interface, signals generated by the operations are input into software, and the software enables the state of a corresponding operated device to change, and the corresponding device parameters are input into a core function module. For example, the relative position of the experimental instrument is determined by dragging the experimental instrument model through a mouse, and the distance parameter of the adjacent experimental instrument can be determined by matching with keyboard input; the experimental parameters of the experimental instrument can be directly modified by directly clicking the experimental instrument, for example, the right click of a mouse clicks the polarizing plate of the experimental instrument, the polarizing plate generates a rotation effect in software, and the software inputs the angle of the polarizing plate and the included angle value theta of the polarization of input light. From the above, visual adjustment is performed on the experimental instrument and the experimental environment at the simulation terminal through the hardware equipment, so as to complete confirmation and input of experimental parameters, and further, complete model establishment of the experimental instrument and the experimental environment, as shown in fig. 1, namely, complete input of the calculation parameters in the core calculation functions corresponding to the target experiment.
Step 5, matching the corresponding 3D model of the optical path according to the output data of the core calculation function, for example, after confirming the angle of the "polarizer" and the angle value θ of the polarization of the input light, the core function module calculates the core calculation function i=i' ·cos by the calculation based on the "Malus law 2 The theta calculates the light intensity I of the laser after passing through the polaroid, wherein I' is the input light intensity, and outputs the light intensity result to the display device optical power meter, the optical power meter display screen in the software displays the corresponding light intensity value, and simultaneously matches the laser three-dimensional model under the light intensity, and matches the position with the polaroid. After each light path model of the whole target experiment is matched, the simulation experiment is completed, and the simulation result can be visually output.
Further, the simulation terminal includes, but is not limited to, a mobile terminal of a mobile phone, a PC terminal, and VR equipment, and a user interaction interface is designed for a hardware carrier (i.e., the simulation terminal) of the virtual simulation software, where the user interaction interface includes an operation mode of a 3D model of the experimental instrument, an experimental data display and recording menu, and the experimental instrument position use and adjustment auxiliary design. As shown in fig. 1, the user interaction interface mainly includes a virtual laboratory wall on which an experiment video playing window 1, a thumbnail top view 2, a three-dimensional virtual laboratory instrument 3, a laboratory environment control switch 4, a laboratory instrument introduction 5, and an instrument name 6 are placed. The virtual laboratory wall on place experiment video broadcast window 1 be used for the user watches teaching materials such as experimental principle demonstration and teaching video through broadcast window, promptly in experimental environment modeling, can place video broadcast window on the virtual laboratory's wall, user's accessible clicks the teaching materials such as experimental principle demonstration and teaching video of broadcast window. The thumbnail top view 2 is used for dynamically presenting the relative position of the experimental instrument in the 2-dimensional picture, namely, the top view of the 3D device and the light beam is displayed in a software interface in real time, and the positions of the device and the light beam in the thumbnail top view are changed in real time along with the movement of the positions of the 3D device and the light beam. The three-dimensional virtual experimental instrument 3 is used for completing the interaction between the establishment of an experimental light path and the experimental process, a user completes the gradual establishment of the light path and the output of experimental results through the input equipment of the simulation terminal, and further, the contents of the abbreviated top view 2 are matched with the light path establishment process of the three-dimensional virtual experimental instrument 3, and the contents of the abbreviated top view 2 and the light path establishment process are synchronously and dynamically output. The laboratory environment control switch 4 is used for controlling the laboratory environment, a user finishes inputting the parameters of the laboratory environment through interaction with the control switch, for example, the laboratory environment control switch 4 can be a lamplight switch of the laboratory environment, in the lamplight switch of the laboratory environment, the form of a 2D icon is available, the user controls the brightness of a lamp tube in the laboratory environment by clicking the lamplight icon, and the lamplight icon changes along with the lamplight switch. The experimental instrument introduction 5 and the instrument name 6 complete the understanding and knowledge of the user about the new 3D model of the experimental instrument, and when the mouse or other input device touches the 3D experimental instrument, the instrument name 6 is displayed on the experimental instrument, and the experimental instrument introduction text is displayed in the interface.
Furthermore, the working parameters of the experimental instrument and the experimental environment in the simulation model of the target experiment can be adjusted, and the corresponding light path model can be dynamically adjusted according to the output of the core calculation function in the adjustment process. Meanwhile, the dynamic adjustment process is also a process of continuously and dynamically transforming the input parameters of the core calculation function, so that the dynamic change of the 3D light path in the experiment can be further realized, and finally the dynamic three-dimensional visual output of the target experiment is completed. For example, the laboratory environment control switch 4 comprises a light switch of the laboratory environment, and the user controls the brightness of the lamp tube in the laboratory environment by clicking a light icon, wherein the light icon changes along with the light switch, so that relevant parameters about the laboratory environment input into the core computing function change.
Furthermore, in the interaction of the experimental process, through integrating and connecting the experimental instrument, the core function and the user interaction interface, a user can utilize the entity hardware equipment, realize the operation and change of the position, the state and the like of the experimental instrument through the user interaction interface, and acquire the experimental data calculated by the core calculation function through a specific instrument or a display window, namely, the user can click the instrument state in the user interaction interface through an input device of the entity hardware equipment, such as a mouse, a keyboard or a VR handle of a personal computer and the like, the signal generated by the operation is input into the software, the software enables the state of the corresponding operated device to change, the corresponding device parameter is input into the core function module, the core function module calculates the result according to the input parameter value and the core function formula embedded in the 4 th step, and outputs the result to a display type device in the software, and the display type device displays the calculation result at the corresponding position in the user interaction interface, so as to complete the function of the whole software.
According to the method, physical modeling is carried out on experimental instruments and devices in a quantum optical entity experiment according to equal proportion, an interaction mode of the devices is completely restored in software, meanwhile, quantum optical signals which are invisible in an actual experiment are displayed in a 3D modeling mode according to the shape of light beams, and visual display of the quantum optical signals is achieved.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the invention without departing from the principles thereof are intended to be within the scope of the invention as set forth in the following claims.
Claims (7)
1. A live-action virtual simulation method for quantum optical teaching is characterized in that: the intelligent mobile terminal comprises an experimental simulation module in the intelligent mobile terminal, wherein the experimental simulation module comprises the following steps of:
step 1, 3D modeling is carried out on a quantum optical experimental instrument, an experimental environment and an optical path;
step 2, selecting a quantum optical target experiment, and drawing a two-dimensional light path diagram of the target experiment;
step 3, inputting a core calculation function, wherein the core calculation function is used for calculating an output value of a corresponding experimental instrument according to the change of parameters or states of the specific experimental instrument in the experimental process of a user;
step 4, selecting an experimental instrument, an experimental environment and working parameters of the experimental instrument according to the two-dimensional optical path of the target experiment, performing 3D modeling on the optical path of the target experiment, and completing the input of the calculated parameters in the core calculation function in the process of selecting the experimental instrument, the experimental environment and the working parameters of the experimental instrument;
and 5, matching the corresponding light path 3D model according to the output of the core calculation function, and performing position matching on the light path 3D model, an experimental instrument and an experimental environment to finish the simulation model output of the target experiment.
2. The realistic virtual simulation method for quantum optical teaching of claim 1, wherein: in the step 1, the experimental instrument, the experimental environment and the 3D model of the light path are all subjected to geometric modeling according to the size of an actual physical device; the 3D model of the optical path includes all models of the input optical path and the output optical path of the target laboratory instrument.
3. The realistic virtual simulation method for quantum optical teaching of claim 1, wherein: the objective experiments of quantum optics in the step 2 include, but are not limited to, quantum entanglement light source experiments, bell inequality violation tests, HBT experiments and quantum key distribution experiments based on different protocols.
4. The realistic virtual simulation method for quantum optical teaching of claim 1, wherein: the core calculation function is input through an input window of the intelligent mobile terminal.
5. The realistic virtual simulation method for quantum optical teaching of claim 4, wherein: the working parameters of the experimental instrument and the experimental environment in the simulation model of the target experiment in the step 5 can be adjusted, and the corresponding light path model can be dynamically adjusted according to the output of the core calculation function in the adjustment process.
6. The realistic virtual simulation method for quantum optical teaching of claim 4, wherein: the intelligent mobile terminal realizes simulation model output of a quantum optical target experiment through a visual screen, and the quantum optical target experiment realizes data input through mouse and keyboard operation.
7. The realistic virtual simulation method for quantum optical teaching of claim 1, wherein: the intelligent mobile terminal also comprises an exhibition module and a collection module, wherein the collection module is used for collecting input and output data in the target experiment simulation process; the exhibition module is used for visually outputting experimental lectures, experimental steps, experimental input and output data.
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