Simulating Anisotropic quantum Rabi model via frequency modulation
Sign Up to like & getrecommendations! Published in 2019 at "Scientific Reports"
DOI: 10.1038/s41598-019-40899-7
Abstract: Anisotropic quantum Rabi model is a generalization of quantum Rabi model, which allows its rotating and counter-rotating terms to have two different coupling constants. It provides us with a fundamental model to understand various physical… read more here.
Keywords: model; rabi model; quantum rabi; anisotropic quantum ... See more keywords
Analytical solution and hidden symmetry operators of asymmetric two-mode quantum Rabi model
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/ac5a22
Abstract: The asymmetric two-mode quantum Rabi model (tmQRM) breaks Z2 -symmetry and also implies hidden symmetry. In this paper, the energy spectrum are analytically computed with Bogoliubov transformation and SU(1, 1) Lie algebra. The analytical results… read more here.
Keywords: symmetry; quantum rabi; mode quantum; asymmetric two ... See more keywords
Oscillatory Behavior of Large Eigenvalues in Quantum Rabi Models
Sign Up to like & getrecommendations! Published in 2019 at "International Mathematics Research Notices"
DOI: 10.1093/imrn/rny294
Abstract: We investigate the large $n$ asymptotics of the $n$-th eigenvalue for a class of unbounded self-adjoint operators defined by infinite Jacobi matrices with discrete spectrum. In the case of the quantum Rabi model we obtain… read more here.
Keywords: eigenvalues quantum; rabi models; quantum rabi; large eigenvalues ... See more keywords
Attempt to find the hidden symmetry in the asymmetric quantum Rabi model
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.101.023808
Abstract: It has been observed that the asymmetric quantum Rabi model (QRM), which does not possess any obvious symmetry, exhibits energy level crossings, which are often associated with symmetries. This observation suggests that there is in… read more here.
Keywords: asymmetric quantum; rabi model; model; quantum rabi ... See more keywords
Symmetry-breaking patterns, tricriticalities, and quadruple points in the quantum Rabi model with bias and nonlinear interaction
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review A"
DOI: 10.1103/physreva.103.063701
Abstract: Quantum Rabi model (QRM) is fascinating not only because of its broad relevance and but also due to its few-body quantum phase transition. In practice both the bias and the nonlinear coupling in QRM are… read more here.
Keywords: nonlinear interaction; rabi model; quantum rabi; bias ... See more keywords
Generalized adiabatic approximation to the quantum Rabi model
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review A"
DOI: 10.1103/physreva.104.033712
Abstract: The quantum Rabi model (QRM) describes the interaction between a two-level system (qubit) and a quantum harmonic oscillator. In the limit where the qubit frequency is smaller than the harmonic frequency, the QRM can be… read more here.
Keywords: adiabatic approximation; rabi model; quantum rabi; approximation ... See more keywords
Universal dynamics of the superradiant phase transition in the anisotropic quantum Rabi model
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review A"
DOI: 10.1103/physreva.104.043307
Abstract: We investigate the universally non-equilibrium dynamics of superradiant phase transition in the anisotropic quantum Rabi model. By introducing position and momentum operators, we obtain the ground states and their excitation gaps for both normal and… read more here.
Keywords: phase transition; quantum rabi; rabi model; dynamics superradiant ... See more keywords
Effective Hamiltonians in the quantum Rabi problem
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review A"
DOI: 10.1103/physreva.105.023704
Abstract: Abstract We revisit the theoretical description of the ultrastrong light-matter interaction in terms of exactly solvable effective Hamiltonians. A perturbative approach based on polaronic and spindependent squeezing transformations provides an effective Hamiltonian for the quantum… read more here.
Keywords: model; quantum rabi; hamiltonians quantum; rabi problem ... See more keywords
Spectral classification of coupling regimes in the quantum Rabi model
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.96.013849
Abstract: The quantum Rabi model is in the scientific spotlight due to the recent theoretical and experimental progress. Nevertheless, a full-fledged classification of its coupling regimes remains as a relevant open question. We propose a spectral… read more here.
Keywords: classification; quantum rabi; spectral classification; rabi model ... See more keywords
Quantum Rabi model in a superfluid Bose-Einstein condensate
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.96.033839
Abstract: We propose a quantum simulation of the quantum Rabi model in an atomic quantum dot, which is a single atom in a tight optical trap coupled to the quasiparticle modes of a superfluid Bose-Einstein condensate.… read more here.
Keywords: quantum; quantum rabi; bose einstein; rabi model ... See more keywords
Simple variational ground state and pure cat state generation in the quantum Rabi model
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.96.043834
Abstract: We introduce a simple, physically-motivated variational ground state for the quantum Rabi model, and demonstrate that it provides a high-fidelity approximation of the true ground state in all parameter regimes (including intermediate and strong coupling… read more here.
Keywords: state; quantum rabi; rabi model; variational ground ... See more keywords