Nonlinear effect on the transmission of light in a cavity array

TL;DR

This paper investigates how nonlinear effects influence photon transmission in a one-dimensional cavity array with a two-level system, revealing potential for quantum switching and detailed dynamical behavior.

Contribution

It introduces a theoretical analysis of nonlinear effects on photon transport in cavity arrays with a two-level system, including transmission calculations and dynamical simulations.

Findings

Nonlinearity affects photon transmission rates.

The two-level system can function as a quantum switch.

Detuning and nonlinearity influence system dynamics.

Abstract

Taking nonlinear effect into account, we study theoretically the transmission properties of photons in a one-dimensional coupled cavities, the cavity located at the center of the cavity array is coupled to a two-level system. By the traditional scattering theory, we calculate the transmission rate of photons along the cavities, and discuss the effect of nonlinearity on the photon transport. The results show that the controllable two-level system can act as a quantum switch in the coherent transport of photons. The dynamics of such a system is also studied by numerical simulations, the effect of the atom-field detuning and nonlinearity on the dynamics is shown and discussed.