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COHERENT LIGHT COMPUTING SYSTEM BASED ON QUANTUM SQUEEZING

Yanchen JIANG, Tiejun Wang

Published Jun 1, 2024• 0 citations

Abstract

Coherent light computing is a specialized computational method based on quantum optics and non von Neumann frameworks, which is expected to break through the bottleneck of computational performance and power consumption in the post Moore era. The core idea of coherent light calculation is based on the principle of minimum gain. By gradually increasing the intensity of the pump light in the degenerate optical parametric oscillator, the lowest energy ground state mode in the oscillator is excited, thus completing a process similar to physical annealing. This annealing process can be used to solve combinatorial optimization problems and has advantages such as fast computation speed, high solution quality, and low power consumption. Coherent optical computers, also known as Coherent Ising Machines, can be used for fast and high-quality solutions to problems such as traffic flow allocation, industrial resource scheduling, and financial investment portfolios. They are an important research direction in quantum computing hardware. This paper, as the second part of the “Advanced Computational Power Technology” topic, introduces the basic principles, historical development and experimental systems of coherent optical computing and coherent Ising machines. This paper not only serves as a general introduction to the future field of computing technology, but the PPT given in the appendix also serves as a useful supplement to the “Quantum Physics” chapter in university physics and other courses.

DOI: 10.26599/phys.2024.9320316

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