Abstract

AbstractA controllable non‐reciprocal transmission model is proposed. The model contains a Möbius ring, which is connected with two 1D semi‐infinite chains, with a two‐level atom located inside one of the cavities of the Möbius ring. The Green function method is used to study the transmittance of a single photon through the model. The results show that non‐reciprocal transmission can be achieved in this model and the two‐level atom can behave as a quantum switch for non‐reciprocal transport of the single photon. This controllable non‐reciprocal transmission model may inspire new quantum non‐reciprocal devices.

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