Results 1 to 10 of about 13,806,723 (180)

Quantum Chaos in the Extended Dicke Model [PDF]

Entropy, 2022
We systematically study the chaotic signatures in a quantum many-body system consisting of an ensemble of interacting two-level atoms coupled to a single-mode bosonic field, the so-called extended Dicke model.
Qian Wang
doaj   +6 more sources

Dicke model. [PDF]

PLoS ONE, 2020
The Dicke model is a fundamental model of quantum optics, which describes the interaction between light and matter. In the Dicke model, the light component is described as a single quantum mode, while the matter is described as a set of two-level systems.
Mor M Roses, Emanuele G Dalla Torre
doaj   +3 more sources

Quantum Phase Transitions in a Generalized Dicke Model [PDF]

Entropy, 2023
We investigate a generalized Dicke model by introducing two interacting spin ensembles coupled with a single-mode bosonic field. Apart from the normal to superradiant phase transition induced by the strong spin–boson coupling, interactions between the ...
Wen Liu, Liwei Duan
doaj   +2 more sources

Chaos and Thermalization in the Spin-Boson Dicke Model [PDF]

Entropy, 2022
We present a detailed analysis of the connection between chaos and the onset of thermalization in the spin-boson Dicke model. This system has a well-defined classical limit with two degrees of freedom, and it presents both regular and chaotic regions ...
David Villaseñor, Saúl Pilatowsky-Cameo, Miguel A. Bastarrachea-Magnani, Sergio Lerma-Hernández, Lea F. Santos, Jorge G. Hirsch   +5 more
doaj   +2 more sources

Dispersive Regimes of the Dicke Model [PDF]

Scientific Reports, 2017
We study two dispersive regimes of the Dicke model in the dynamics of N two-level atoms interacting with a bosonic mode for long interaction times. Firstly, we analyze the model for the regime in which the qubit frequencies are equal and smaller than the
Diego Barberena, Lucas Lamata, Enrique Solano   +2 more
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Characterizing the dynamical phase diagram of the Dicke model via classical and quantum probes

Physical Review Research, 2021
We theoretically study the dynamical phase diagram of the Dicke model in both classical and quantum limits using large, experimentally relevant system sizes.
R. J. Lewis-Swan, S. R. Muleady, D. Barberena, J. J. Bollinger, A. M. Rey   +4 more
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Unifying scrambling, thermalization and entanglement through measurement of fidelity out-of-time-order correlators in the Dicke model [PDF]

Nature Communications, 2019
The scrambling of quantum information in a many-body system leads to the emergence of statistical mechanics and chaotic behaviour. Here the authors establish quantitative relationships between experimentally-measureable correlators, the Rényi entropy and
R. J. Lewis-Swan, A. Safavi-Naini, J. J. Bollinger, A. M. Rey   +3 more
doaj   +2 more sources

Bound polariton states in the Dicke–Ising model [PDF]

Nanophotonics
We present a study of hybrid light–matter excitations in cavity QED materials using the Dicke–Ising model as a theoretical framework. Leveraging linear response theory, we derive the exact excitations of the system in the thermodynamic limit. Our results
Román-Roche Juan, Gómez-León Álvaro, Luis Fernando, Zueco David   +3 more
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Dynamical phase transition in the open Dicke model. [PDF]

Proc Natl Acad Sci U S A, 2015
Klinder J, Keßler H, Wolke M, Mathey L, Hemmerich A.   +4 more
europepmc   +2 more sources

Lasing and counter-lasing phase transitions in a cavity-QED system

Physical Review Research, 2022
We study the effect of spontaneous emission and incoherent atomic pumping on the nonlinear semiclassical dynamics of the unbalanced Dicke model—a generalization of the Dicke model that features independent coupling strengths for the co- and counter ...
Kevin C. Stitely, Andrus Giraldo, Bernd Krauskopf, Scott Parkins   +3 more
doaj   +1 more source