Quantum Physics

    

A Quantum Model of Linear Optical Devices for Quantum Computing

Authors: Yuan Jiang, Rebecca Jiang

Extending an existing quantum optic model for beamsplitters, a comprehensive model is developed from the first principles of quantum physics to describe photons traversing linear optical devices of arbitrary number of ports and even a circuit of devices, which are essential components of photonic quantum computing gates and circuits. The model derives the quantum operators and states of the photons at the egress ports of a device, gate or circuit from those at the ingress ports. As an application and validation, it is used to model the experiment that discovered the Hong-Ou-Mandel (HOM) effect and to explain the effect without the notion of quantum interference. The experiment is not only a landmark in the research of quantum optics but also important to photonic quantum computing design.

Comments: 7 Pages. Revised email address and Eq. 21.

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Submission history

[v1] 2020-11-16 20:04:26
[v2] 2020-11-17 10:54:59

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