Population trapping due to cavity losses

TL;DR

This paper demonstrates that non-Markovian atom-cavity systems can achieve population trapping, preserving nonclassical states despite cavity losses, which is crucial for quantum information applications.

Contribution

It reveals how non-Markovian environments enable population trapping in atom-cavity systems, advancing understanding of dissipation effects in cavity QED.

Findings

Population trapping occurs in non-Markovian atom-cavity systems.

Cavity losses can be mitigated through non-Markovian dynamics.

Results help understand leakage in cavity quantum electrodynamics.

Abstract

In population trapping the occupation of a decaying quantum level keeps a constant non-zero value. We show that an atom-cavity system interacting with an environment characterized by a non-flat spectrum, in the non-Markovian limit, exhibits such a behavior, effectively realizing the preservation of nonclassical states against dissipation. Our results allow to understand the role of cavity losses in hybrid solid state systems and pave the way to the proper description of leakage in the recently developed cavity quantum electrodynamic systems.