Nonclassical Radiation from Thermal Cavities in the Ultrastrong Coupling Regime

Abstract

Thermal or chaotic light sources emit radiation characterized by a slightly enhanced probability of emitting photons in bunches, described by a zero-delay second-order correlation function $g^{(2)}(0)=2$. Here we explore photon-coincidence counting statistics of thermal cavities in the ultrastrong coupling regime, where the atom-cavity coupling rate becomes comparable to the cavity resonance frequency. We find that, depending on the system temperature and coupling rate, thermal photons escaping the cavity can display very different statistical behaviors, characterised by second-order correlation functions approaching zero or greatly exceeding two.

results on frequency resolved photon correlations added, to appear in Phys. Rev. Lett

References in corpus (6)

• Beyond the Jaynes-Cummings model: circuit QED in the ultrastrong coupling regime
• Ultra-Strong Light-Matter Coupling Regime with Polariton Dots
• Observation of Resonant Photon Blockade at Microwave Frequencies using Correlation Function Measurements
• Measurements of the Correlation Function of a Microwave Frequency Single Photon Source
• Theory of frequency-filtered and time-resolved N-photon correlations
• Planck Spectroscopy and the Quantum Noise of Microwave Beam Splitters

Cited by in corpus (33)

• Microwave photonics with superconducting quantum circuits
• Shortcuts to Adiabaticity for the Quantum Rabi Model: Efficient Generation of Giant Entangled cat States via Parametric Amplification
• Optimal rectification by strongly coupled spins
• High quality factor, fully switchable THz superconducting metasurface
• Magnon-assisted photon-phonon conversion in the presence of the structured environments
• Observing pure effects of counter-rotating terms without ultrastrong coupling: A single photon can simultaneously excite two qubits
• Spectroscopy and critical quantum thermometry in the ultrastrong coupling regime
• Tailored subcycle nonlinearities of ultrastrong light-matter coupling
• Signatures of the $A^2$ term in ultrastrongly-coupled oscillators
• Simulating Anisotropic quantum Rabi model via frequency modulation
• Collective dynamics of the unbalanced three-level Dicke model
• Can we observe non-perturbative vacuum shifts in cavity QED?
• Non-Invasive Near-field Spectroscopy of Single Sub-Wavelength Complementary Resonators
• Phase-kicked control of counter-rotating interactions in the quantum Rabi model
• Nonclassical light from few emitters in a cavity
• Implication of giant photon bunching on quantum phase transition in the dissipative anisotropic quantum Rabi model
• Probing Ultrastrong Light-Matter Coupling in Open Quantum Systems
• Dynamic Stark effect, light emission, and entanglement generation in a laser-driven quantum optical system
• Single-photon-induced two qubits excitation without breaking parity symmetry
• Multimode Phonon-Polaritons in Lead-Halide Perovskites in the Ultrastrong Coupling Regime
• Multi-qubit Quantum Rabi Model and Multi-partite Entangled States in a Circuit QED System
• Measuring intensity correlations of a THz quantum cascade laser around its threshold at sub-cycle timescales
• Quantum Features of the Thermal Two-Qubit Quantum Rabi Model in Ultra- and Deep-Strong Regimes
• Non-Markovian dynamics of few emitters in a laser-driven cavity
• Ultranarrow spectral line of the radiation in double qubit-cavity ultrastrong coupling system
• Phase Transitions in Light-Matter Systems for Quantum Sensing
• Release of virtual photon and phonon pairs from qubit-plasmon-phonon ultrastrong coupling system
• From Few to Many Emitters Cavity QED: Energy Levels and Emission Spectra From Weak to Deep-Strong Coupling
• Nonclassical correlations and quadrature squeezing of photons in anisotropic quantum Rabi-Stark model
• Two-Polariton Blockade via Ultrastrong Light-Matter Coupling
• Quantum phase transition of light in the dissipative Rabi-Hubbard lattice: A dressed-master-equation perspective
• Nonclassical Photon-Bundle Correlations in Quantum Rabi Models
• Bright polariton OLEDs operating in the ultra-strong coupling regime