Turing Quantum's first dedicated optical quantum computing simulation software FeynmanPAQS trial commercial
On December 31st, Turing Quantum announced the trial commercial use of FeynmanPAQS (Photonic Analog Quantum Simulation), the first domestic commercial optical quantum computing simulation software developed by itself, which filled the gap in domestic technology and products in this field.
FeynmanPAQS is both dedicated optical quantum computing simulation software and EDA software for 3D photonic chip design. It is a convenient and easy-to-use cloud computing simulation platform that focuses on the development of actual chips in the future. The software is named after Feynman at the beginning, to pay tribute to the famous physicist Richard Feynman (Richard P. Feynman), a pioneer in the concept of quantum computing.
Arbitrary Hamiltonian construction
The function evolution law of light in the chip obeys the Schrodinger equation. Picture, where z is the distance along the chip propagation direction, the picture is the Hamiltonian matrix containing the waveguide structure information, n is the total number of waveguides, and the picture is the photon in the i-th Annihilation operator on each waveguide.
The diagonal element of the Hamiltonian matrix is βi (that is, the transmission coefficient along its own waveguide i), and the off-diagonal element is Cij (that is, the coupling coefficient between waveguides i and j), which has an exponential attenuation relationship with the waveguide spacing, so When the spatial waveguide distribution is determined, all Cij can be determined accordingly. The user can construct any Hamiltonian by designing and controlling the properties of a single waveguide and the geometric relationship between the waveguides, thereby realizing dedicated quantum calculations for specific problems.
Optical quantum computing simulation
Due to the precision of optical experiments, macro-optical experiments usually require a lot of instrument debugging, cumbersome optical component construction, stable optical platform, and laboratory environment that does not affect the experiment. The emergence of optical chips makes many parameters tend to be stable, and it is possible to integrate a large number of optical devices. In the process of simplifying the complexity, it also brings new problems, such as the selection of processing methods and the exploration of processing parameters. A small mistake can cause the overall experiment to fail. The birth of optical experiment supporting software is a very natural process.
The role of software, especially the role of simulation software, is to use a lower experimental cost to conduct preliminary experiments and better match the real situation. Because of the accuracy of the optical experiment, a well-designed and processed device is in good agreement with the theoretical calculation value. Therefore, the existence of simulation computing software can guide the experiment and try first.
As a quantum computing simulator, the software can simulate and calculate the optical evolution process in a variety of situations. The current software includes five main modules:
1. Single-photon quantum walks (Quantum Walks);
2. Quantum Stochastic Walks;
3. Multi-Particle Quantum Walks;
4. Freely designed two-dimensional quantum walks (Customized Quantum Walks);
5. Boson Sampling.
It is worth mentioning that the core parameters of the algorithm in FeynmanPAQS are verified by a large number of experiments. The results of calculation simulation are not only reliable theoretical basis, but also closer to the actual situation. The simulation result can be used to correspond to the actual chip processing parameters, and then cooperate with the light source and measurement and control system of the light quantum computer. In this way, users can realize a whole-process optical experiment integrating software and hardware from chip structure design, simulation test to actual test.
Three-dimensional photonic chip design EDA platform
FeynmanPAQS, as an optical chip design platform, can be used to assist the EDA design of 3D photonic chips. It can solve a series of tasks such as chip design, modeling, simulation, and verification, improve the overall verification efficiency of chip design schemes, and reduce the development and processing of 3D photonic chips. The trial and error between errors and theoretical design deviations reduces manual input and shortens the chip verification cycle.
The software contains the design of the three-dimensional waveguide structure inside the chip, and users can design the space structure they want according to their needs. The software also presets common geometric structures to provide convenient and quick operation.
In addition to light quantum computing tasks such as quantum walking and Bose sampling, FeynmanPAQS's computational simulation capabilities in arbitrary structures also provide research and development capabilities in fields such as topological photonics, symmetry, black hole and celestial body simulation, and optical interconnection. And will continue to enrich and update iterations.
Cloud computing simulation platform
FeynmanPAQS can not only be integrated in an optical quantum computer, but it can also be used at any place via cloud login. You only need to log in to the portal feynmanpaqs.turingq.com through a browser, and you can have your own dedicated photon chip online laboratory, eliminating the need for tedious steps such as local software installation and no need to worry about software updates.
The integration of cloud computing and easy-to-use graphical user interface reduces the barriers to use. Its module design is gradual, and both enthusiasts who are new to quantum computing or experienced R&D personnel can participate in the exploration of optical quantum computing.
FeynmanPAQS special optical quantum computing software can bring a wide range of scientific research scholars, engineers, and popular science groups into the forefront of optical quantum computing, and even use the platform to carry out scientific research and engineering development. Turing Quantum has opened a 3-month free trial period for FeynmanPAQS in an effort to promote the discovery of more dedicated optical quantum computing algorithms, the intersection of basic scientific research fields, and the docking of engineering applications of quantum computing, etc., to promote the development of the field.
