Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:quant-ph/0312203 · Annals of Physics

1/N-Expansion for the Dicke model and the decoherence program

Marco Frasca

Published May 8, 2004• 23 citations
arXivHTMLPDF
DOI
10.1016/j.aop.2004.04.005

Related papers

Firstorder quantum phase transition in the two-mode Dicke model

Yu Li-Xian, Qifeng Liang, Wang Li-Rong +1 more

The multi-mode Dicke model, which describes many atoms interacting with the multi-mode photons, has attracted much attention; it not only exhibits rich quantum phases, but also has an important application in quantum information. In this paper, we explore the ground-state properties of the two-mode Dicke model by the Holstein-Primakoff transformation and Boson expansion method, and theoretically predict a new first-order quantum phase transition. In the experiment, this quantum phase transition could be detected by measuring the mean-photon number or the atom population.

Acta Physica Sinica•Jan 1, 2014•2 citations

A Simple Model for Decoherence

Alessandro Teta

Springer eBooks•Dec 9, 2013•0 citations

(Almost) everything is a Dicke model - Mapping non-superradiant correlated light-matter systems to the exactly solvable Dicke model

Andreas Schellenberger, Kai Phillip Schmidt

We investigate classes of interacting quantum spin systems in a single-mode cavity with a Dicke coupling, as a paradigmatic example of strongly correlated light-matter systems. Coming from the limit of weak light-matter couplings and large number of matter entities, we map the relevant low-energy sector of a broad class of models in the non-superradiant phases onto the exactly solvable Dicke model. We apply the outcomes to the Dicke-Ising model as a paradigmatic example [Phys. Rev. Res. 2, 023131 (2020), Sci. Rep. 4, 4083 (2014)], in agreement with results obtained by mean-field theory [Sci. Rep. 4, 4083 (2014)]. We further accompany and verify our findings with finite-size calculations, using exact diagonalization and the series expansion method pcst ^{++} + + [Phys. Rev. A 108, 013323 (2023)]

arXiv:2402.15209•SciPost Physics Core•Jul 2, 2024•10 citations

Master-Equations for the Study of Decoherence

B. Vacchini

arXiv:quant-ph/0301039•International Journal of Theoretical Physics•Jul 1, 2005•18 citations

Decoherence, entanglement, and chaos in the Dicke model (6 pages)

Xi-Wen Hou

Physical Review A•Jan 1, 2004•0 citations

Quantum decoherence

Maximilian Schlosshauer

arXiv:1911.06282•Physics Reports•Oct 1, 2019•496 citations
The multi-mode Dicke model, which describes many atoms interacting with the multi-mode photons, has attracted much attention; it not only exhibits rich quantum phases, but also has an important application in quantum information. In this paper, we explore the ground-state properties of the two-mode Dicke model by the Holstein-Primakoff transformation and Boson expansion method, and theoretically predict a new first-order quantum phase transition. In the experiment, this quantum phase transition could be detected by measuring the mean-photon number or the atom population.
We investigate classes of interacting quantum spin systems in a single-mode cavity with a Dicke coupling, as a paradigmatic example of strongly correlated light-matter systems. Coming from the limit of weak light-matter couplings and large number of matter entities, we map the relevant low-energy sector of a broad class of models in the non-superradiant phases onto the exactly solvable Dicke model. We apply the outcomes to the Dicke-Ising model as a paradigmatic example [Phys. Rev. Res. 2, 023131 (2020), Sci. Rep. 4, 4083 (2014)], in agreement with results obtained by mean-field theory [Sci. Rep. 4, 4083 (2014)]. We further accompany and verify our findings with finite-size calculations, using exact diagonalization and the series expansion method pcst ^{++} + + [Phys. Rev. A 108, 013323 (2023)]