Kinetically constrained superradiance

TL;DR

This paper introduces kinetically constrained superradiance, a new form of cooperative emission that creates configuration-dependent energy shifts, enabling long-lived entanglement and complex relaxation dynamics purely through dissipation.

Contribution

It presents a novel mechanism of superradiance with configuration-dependent shifts, allowing for stabilization of entanglement without coherent control.

Findings

Configuration-dependent energy shifts split superradiance into multiple decay channels.

Long-lived entanglement can be stabilized via dissipative, configuration-selective emission.

Dissipation alone can generate correlations without entangling coherent dynamics.

Abstract

We introduce kinetically constrained superradiance, a form of cooperative emission in which interactions imprint configuration-dependent energy shifts on optical transitions, splitting Dicke superradiance into multiple, frequency-resolved collective decay channels. Each channel selectively radiates from distinct many-body spin configurations, generating a hierarchy of dissipative time scales and sequential relaxation dynamics. Unlike conventional superradiance, where permutation symmetry enforces relaxation to a trivial steady state, configuration-selective emission can trap finite-momentum spin-wave excitations and stabilize long-lived entanglement. Remarkably, these correlations are generated purely by dissipation in the absence of entangling coherent dynamics. Our results point to modern superradiant experiments as scalable resources for dissipative engineering of correlated quantum states.