Articles with "rabi model" as a keyword



Simulating Anisotropic quantum Rabi model via frequency modulation

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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

Approximate analytic solution of the dissipative semiclassical Rabi model under parametric multi-tone modulations

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Published in 2024 at "Physica Scripta"

DOI: 10.1088/1402-4896/ad8bff

Abstract: We present an analytic method for obtaining the dynamics of the dissipative time-modulated semiclassical Rabi model, which describes a two-level system (qubit) with time-dependent parameters, coupled to a single-mode bosonic field via the dipole-interaction and… read more here.

Keywords: rabi model; analytic solution; semiclassical rabi; approximate analytic ... See more keywords

Attempt to find the hidden symmetry in the asymmetric quantum Rabi model

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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

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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
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Generalized adiabatic approximation to the quantum Rabi model

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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

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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

Controlling the superradiant phase transition in the quantum Rabi model

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Published in 2024 at "Physical Review A"

DOI: 10.1103/physreva.111.023708

Abstract: In the ultrastrong-coupling regime, the quantum Rabi model can exhibit quantum phase transition (QPT) when the ratio of the qubit transition frequency to the frequency of the cavity field approaches infinity. However, it is challenging… read more here.

Keywords: rabi model; quantum rabi; model; transition ... See more keywords

Critical spectrum of the anisotropic two-photon quantum Rabi model

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Published in 2024 at "Physical Review A"

DOI: 10.1103/physreva.111.043706

Abstract: The anisotropic two-photon quantum Rabi model is studied using the Bogoliubov operator approach. The doubly degenerate exceptional states are identified through analytical methods. By adjusting the position of the last exceptional point belonging to two… read more here.

Keywords: rabi model; quantum rabi; two photon; photon quantum ... See more keywords

Spectral classification of coupling regimes in the quantum Rabi model

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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

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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

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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