Circuit QED bright source for chiral entangled light based on dissipation

TL;DR

This paper presents a circuit QED-based device that generates chiral entangled microwave light through dissipation and external driving, with implications for quantum physics and lattice models.

Contribution

It introduces a novel circuit QED setup that produces chiral entangled light by leveraging dissipation and external driving, enabling exploration of dissipative quantum criticality.

Findings

Demonstrates chiral emission in a circuit QED array

Shows how to implement dissipative quantum lattice models

Reveals potential for fundamental physics applications

Abstract

Based on a circuit QED qubit-cavity array a source of two-mode entangled microwave radiation is designed. Our scheme is rooted in the combination of external driving, collective phenomena and dissipation. On top of that the reflexion symmetry is broken via external driving permitting the appearance of chiral emission. Our findings go beyond the applications and are relevant for fundamental physics, since we show how to implement quantum lattice models exhibiting criticality driven by dissipation.