Photon and phonon statistics in a qubit-plasmon-phonon ultrastrong coupling system

Abstract

We study photon/phonon statistics of a qubit-plasmon-phonon hybrid system in the ultrastrong coupling regime. The introduced qubit coupling causes parity conserving and non-conserving situations. We employ an analytic approximation approach for the parity conserving case to reveal the statistical behaviors of photons and phonons. It indicates that both photons and phonons show strong antibunching at the same frequency. Even though the bunching properties of photons/phonons occupy the dominant regions of the considered frequencies, phonons tend to weakly antibunching within the photonic strong-bunching area. In contrast, one can find that the configurations of correlation functions for both photons and phonons in the parity conserving case are squeezed towards the central frequency by parity breaking, which directly triggers the reverse statistical behaviors for the different parties at the low-frequency regions and the strong bunching properties at other frequency regions. The photon-phonon cross-correlation function also demonstrates similar parity-induced differences, indicating that the non-conserving parity induces the photon-phonon bunching behavior. We finally analyze the delayed second-order correlation function with different driving frequencies, which illustrates striking oscillations revealing the occurrence of simultaneous multiple excitations.

9 pages, 7 figures. To appear in PRA

References in corpus (14)

• The Quantum Internet
• Beyond the Jaynes-Cummings model: circuit QED in the ultrastrong coupling regime
• Climbing the Jaynes-Cummings Ladder and Observing its Sqrt(n) Nonlinearity in a Cavity QED System
• Generalized rotating-wave approximation for arbitrarily large coupling
• Input-output theory of cavities in the ultra-strong coupling regime: the case of a time-independent vacuum Rabi frequency
• Multiple Rabi Splittings under Ultra-Strong Vibrational Coupling
• Quantum Zeno and Anti-Zeno Effect without Rotating Wave Approximation
• Intersubband Polaritons in the Electrical Dipole Gauge
• Scattering in the ultrastrong regime: nonlinear optics with one photon
• Fate of photon blockade in the deep strong coupling regime
• Quantum coherence in ultrastrong optomechanics
• Collective Radiance Effects in the Ultrastrong Coupling Regime
• Single-photon Spectra in Quantum Optomechanics
• Amplification of light scattering in arrays of nanoholes by plasmonic absorption-induced transparency

Cited by in corpus (5)

• Phonon Signatures in Photon Correlations
• Dual Symmetry Classification of Non-Hermitian Systems and ${\mathbb{Z}}_2$ Point-Gap Topology of a Non-Unitary Quantum Walk
• Origin of Robust ${\mathbb{Z}}_2$ Topological Phases in Stacked Hermitian Systems: Non-Hermitian Level Repulsion
• Release of virtual photon and phonon pairs from qubit-plasmon-phonon ultrastrong coupling system
• Two-Polariton Blockade via Ultrastrong Light-Matter Coupling