The study of interference effect in a globally coupled quantum network

Abstract

We investigate the quantum interference effect in a globally coupled quantum network that is composed of N lowly dissipative optical cavities and a highly dissipative cavity. After effectively eliminating the highly dissipative mode, we obtain the effective master equation including some additional terms. In particular, these additional terms can explain the interference effect between any two different coupling paths of the quantum network. To demonstrate the practical application of the interference effect, we consider the manipulation of heat flows as an example. The results show that the heat currents can be effectively dominated by adjusting interference angles and amplitudes, and thus the function of some thermal devices can be achieved, such as the thermal diode, thermal switch, and thermal modulator.