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arXiv · 1812.06716

Universal tool for single-photon circuits: quantum router design

A. N. Sultanov·Ya. S. Greenberg·E. A. Mutsenik·D. K. Pitsun·E. Il'ichev
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Abstract

We demonstrate that the non-Hermitian Hamiltonian approach can be used as a universal tool to design and describe a performance of single photon quantum electrodynamical circuits(cQED). As an example of the validity of this method, we calculate a novel six port quantum router, constructed from 4 qubits and 3 open waveguides. We have got analytical expressions, which describe the transmission and reflection coefficients of a single photon in general form taking into account the non-uniform qubit's parameters. We show that, due to naturally derived interferences, it is possible to tune the probability of photon detection in different ports in-situ.

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A. N. Sultanov, Ya. S. Greenberg, E. A. Mutsenik, D. K. Pitsun, E. Il'ichev. 2018-12-17. Universal tool for single-photon circuits: quantum router design. https://arxiv.org/abs/1812.06716

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