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We demonstrate that a tensor product structure and optical analogy of quantumentanglement can be obtained by introducing pseudorandom phase sequences intoclassical fields with two orthogonal modes. Using the classical analogy, wediscuss efficient simulation of several typical quantum states, includingproduct state, Bell states, GHZ state, and W state. By performing quadraturedemodulation scheme, we propose a sequence permutation mechanism to simulatecertain quantum states and a generalized gate array model to simulate quantumalgorithm, such as Shor's algorithm and Grover's algorithm. The research onclassical simulation of quantum states is important, for it not only enablespotential beyond quantum computation, but also provides useful insights intofundamental concepts of quantum mechanics.

Optical analogy to quantum computation based on classical fields modulated pseudorandom phase sequences