Dissipation-induced superradiance in matter coupled to a self-interacting cavity

• URL: http://arxiv.org/abs/2606.14526v1
• Date: Fri, 12 Jun 2026 14:59:21 GMT
• Title: Dissipation-induced superradiance in matter coupled to a self-interacting cavity
• Abstract summary: We consider self-interacting light in a cavity, modeled by a photonic Kerr nonlinearity.<n>We show that negative Kerr nonlinearity gives rise to a low-threshold superradiant phase with spin inversion.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Light-matter interactions are often modeled via the Dicke model, namely, by two-level systems coupled to a cavity mode. Alas, the threshold for superradiance is often experimentally inaccessible or hindered by light's diamagnetic term. Here, within the Dicke setting, we consider self-interacting light in a cavity, modeled by a photonic Kerr nonlinearity. We show that negative Kerr nonlinearity gives rise to a low-threshold superradiant phase with spin inversion. While unstable in a closed system, cavity dissipation stabilizes this lit phase, opening avenues for lasing and bath-engineered phases.

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