Time-resolved spectroscopy of noise-driven collective states of light

Abstract

We study a collective liquid state of light in a fast-gain laser. Controlled temporal noise on the cavity modulation creates a fluctuating linear potential along the synthetic frequency lattice of the cavity modes. We identify three regimes of lattice occupation as noise increases: an extended distribution, a Gaussian envelope, and exponential localization. Time-resolved spectroscopy on single realizations of noise reveals distinct dynamics in the latter two: transport persists in the Gaussian regime, modulated by the fluctuating potential, but is fully suppressed at all times in the localized regime. Averaging over many noise realizations shows that noise reduces the transport speed and confirms ergodicity of the system.

References in corpus (14)

• Quantum fluids of light
• Observation of Superfluidity of Polaritons in Semiconductor Microcavities
• Bose-Einstein condensation of photons in an optical microcavity
• Observation of arbitrary topological windings of a non-Hermitian band
• Coherent Signal Amplification in Bistable Nanomechanical Oscillators by Stochastic Resonance
• High-dimensional frequency crystals and quantum walks in electro-optic microcombs
• Dissipative Kerr solitons in semiconductor ring lasers
• Quantum Walk Comb in a Fast Gain Laser
• Emerging supersolidity from a polariton condensate in a photonic crystal waveguide
• Backscattering-Induced Dissipative Solitons in Ring Quantum Cascade Lasers
• Lasing on hybridized soliton frequency combs
• Proliferation of unstable states and their impact on stochastic out-of-equilibrium dynamics
• Spectral shaping of fast-gain frequency combs through phases in synthetic dimensions
• Ultrafast Non-Hermitian Skin Effect