Nonclassical Radiation from Thermal Cavities in the Ultrastrong Coupling Regime

2012/12/31 by A. Ridolfo, Alessandro Ridolfo, Salvatore Savasta +1 · 5 citations
Computer Science · Physics and Astronomy · #Atom (system on chip) #Atomic physics #Coincidence #Correlation function (quantum field theory) #Coupling (piping) #Materials science #Optics #Photon #Physics #Quantum Electrodynamics and Casimir Effect #Quantum Information and Cryptography #Quantum mechanics #Radiation #Resonance (particle physics) #Strong Light-Matter Interactions #Thermal #Thermal fluctuations #Thermal radiation #Thermodynamics #quant-ph

paper · pdf · doi:10.1103/physrevlett.110.163601

published as Phys. Rev. Lett. 110, 163601 (2013) · results on frequency resolved photon correlations added, to appear in Phys. Rev. Lett

arxiv created 2013/04/03 · openalex publication_date 2013/04/15 · arxiv updated 2013/04/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

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, characterized by second-order correlation functions approaching zero or greatly exceeding two.

Citations

• Observation of Resonant Photon Blockade at Microwave Frequencies Using Correlation Function Measurements
• Strong coupling of a single photon to a superconducting qubit using circuit quantum electrodynamics
• The Quantum Theory of Optical Coherence

Cited by

• Quantum nonlinear optics without photons
• Multi-qubit Quantum Rabi Model and Multi-partite Entangled States in a Circuit QED System
• Photon correlations from ultrastrong optical nonlinearities
• Observing pure effects of counter-rotating terms without ultrastrong coupling: A single photon can simultaneously excite two qubits
• Nonreciprocal unconventional photon blockade with spinning two-mode cavity coupled via χ(2) nonlinearities

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