Analytical solutions by squeezing to the anisotropic Rabi model in the nonperturbative deep-strong-coupling regime

2017 ◽  
Vol 96 (6) ◽  
Author(s):  
Yu-Yu Zhang ◽  
Xiang-You Chen
Keyword(s):  
Strong Coupling ◽  
Analytical Solutions ◽  
Strong Coupling Regime ◽  
Rabi Model

The su(1,1)-like intensity-dependent Rabi model: A perturbative analysis of weak and strong-coupling regimes

2014 ◽  
Vol 12 (07n08) ◽  
pp. 1560010 ◽  
Author(s):  
Vittorio Penna ◽  
Francesco A. Raffa
Keyword(s):  
Strong Coupling ◽  
Photon Number ◽  
Single Mode ◽  
Strong Coupling Regime ◽  
Model Parameters ◽  
Energy Eigenvalues ◽  
First Case ◽  
Coupling Case ◽  
Rabi Model ◽  
Almost Continuous

We present a perturbative analysis of a Rabi model where the coupling between the quantized single-mode electromagnetic field and the two-level atom depends on the field intensity. Upon modeling the matter–radiation coupling through the Holstein–Primakoff realization of algebra su(1,1), we evaluate first- and second-order eigenenergies and eigenstates both in the weak-coupling regime (atom transition frequency smaller than the coupling strength) and in the strong-coupling regime. In the first case, among various effects, we observe a quadratic dependence on the photon number of energy eigenvalues and the possible formation of level doublets. In the strong-coupling case, the perturbative analysis becomes considerably complex due to the su(1,1)-valued form of the unperturbed Hamiltonian. The critical condition for the transition to an almost continuous spectrum is found in terms of the model parameters.

scholarly journals Analog quantum simulation of the Rabi model in the ultra-strong coupling regime

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Jochen Braumüller ◽  
Michael Marthaler ◽  
Andre Schneider ◽  
Alexander Stehli ◽  
Hannes Rotzinger ◽  
...  
Keyword(s):  
Strong Coupling ◽  
Quantum Simulation ◽  
Strong Coupling Regime ◽  
Rabi Model

scholarly journals An analytical variational method for the biased quantum Rabi model in the ultra-strong coupling regime

2018 ◽  
Vol 27 (5) ◽  
pp. 054219 ◽  
Author(s):  
Bin-Bin Mao ◽  
Maoxin Liu ◽  
Wei Wu ◽  
Liangsheng Li ◽  
Zu-Jian Ying ◽  
...  
Keyword(s):  
Variational Method ◽  
Strong Coupling ◽  
Strong Coupling Regime ◽  
Rabi Model

Strong Coupling: Polariton Bose Condensation

2017 ◽  
Author(s):  
Alexey V. Kavokin ◽  
Jeremy J. Baumberg ◽  
Guillaume Malpuech ◽  
Fabrice P. Laussy
Keyword(s):  
Strong Coupling ◽  
Room Temperature ◽  
Elevated Temperatures ◽  
Dissipative System ◽  
Bose Condensation ◽  
Einstein Condensation ◽  
Strong Coupling Regime ◽  
Stimulated Scattering ◽  
Exciton Polaritons ◽  
Bose Einstein

In this Chapter we address the physics of Bose-Einstein condensation and its implications to a driven-dissipative system such as the polariton laser. We discuss the dynamics of exciton-polaritons non-resonantly pumped within a microcavity in the strong coupling regime. It is shown how the stimulated scattering of exciton-polaritons leads to formation of bosonic condensates that may be stable at elevated temperatures, including room temperature.

Strong coupling: resonant effects

2017 ◽  
Author(s):  
Alexey V. Kavokin ◽  
Jeremy J. Baumberg ◽  
Guillaume Malpuech ◽  
Fabrice P. Laussy
Keyword(s):  
Strong Coupling ◽  
Experimental Studies ◽  
Strong Coupling Regime ◽  
Theoretical Studies ◽  
Stimulated Scattering ◽  
Quantum Theories ◽  
Pump Probe ◽  
Exciton Polaritons ◽  
Linear Optical Properties ◽  
Experimental And Theoretical Studies

This chapter presents experimental studies performed on planar semiconductor microcavities in the strong-coupling regime. The first section reviews linear experiments performed in the 1990s that evidence the linear optical properties of cavity exciton-polaritons. The chapter is then focused on experimental and theoretical studies of resonantly excited microcavity emission. We mainly describe experimental configuations in which stimulated scattering was observed due to formation of a dynamical condensate of polaritons. Pump-probe and cw experiments are described in addition. Dressing of the polariton dispersion and bistability of the polariton system due to inter-condensate interactions are discussed. The semiclassical and the quantum theories of these effects are presented and their results analysed. The potential for realization of devices is also discussed.

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