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The Dicke Hamiltonian describes the simplest quantum system with atoms interacting with photons: N two level atoms inside a perfectly reflecting cavity which allows only one electromagnetic mode. It has also been successfully employed to…

量子物理 · 物理学 2011-04-05 O. Casta~nos , E. Nahmad-Achar , R. Lopez-Peña , J. G. Hirsch

Hybrid photonic-plasmonic nanostructures allow one to engineer coupling of quantum emitters and cavity modes accounting for the direct coherent and environment mediated dissipative pathways. Using generalized plasmonic Dicke model, we…

介观与纳米尺度物理 · 物理学 2020-02-19 Andrei Piryatinski , Oleksiy Roslyak , Hao Li , Eric R. Bittner

Generalized Dicke models can be implemented in hybrid quantum systems built from ensembles of nitrogen-vacancy (NV) centers in diamond coupled to superconducting microwave cavities. By engineering cavity assisted Raman transitions between…

We consider a gas of ultracold two-level atoms confined in a cavity, taking into account for atomic center-of-mass motion and cavity mode variations. We use the generalized Dicke model, and analyze separately the cases of a Gaussian, and a…

量子物理 · 物理学 2015-05-13 Jonas Larson , Maciej Lewenstein

The dissipative Dicke model exhibits a fascinating out-of-equilibrium many-body phase transition as a function of a coupling between a driven photonic cavity and numerous two-level atoms. We study the effect of a time-dependent parametric…

量子气体 · 物理学 2015-08-19 R. Chitra , Oded Zilberberg

We introduce a group-theoretical extension of the Dicke model which describes an ensemble of two-level atoms interacting with a finite radiation field. The latter is described by a spin model whose main feature is that it possesses a…

量子物理 · 物理学 2020-06-17 L. F. Quezada , A. Martín-Ruiz , A. Frank

The Dicke model is a paradigmatic quantum-optical model describing the interaction of a collection of two-level systems with a single bosonic mode. Effective implementations of this model made it possible to observe the emergence of…

The Dicke model and the superradiance of two-level systems in a radiation field have many applications. Recently, a Dicke quantum phase transition has been realized with a Bose-Einstein condensate in a cavity. We numerically solve the…

量子气体 · 物理学 2017-01-11 Axel U. J. Lode , Christoph Bruder

The Dicke model describes the coherent interaction of a laser-driven ensemble of two level atoms with a quantized light field. It is realized within cavity QED experiments, which in addition to the coherent Dicke dynamics feature…

量子气体 · 物理学 2018-02-08 Jan Gelhausen , Michael Buchhold

The Dicke model describes an ensemble of N identical two-level atoms (qubits) coupled to a single mode of a bosonic field. The fermion Dicke model should be obtained by changing the atomic pseudo-spin operators by a linear combination of…

量子物理 · 物理学 2007-06-13 M. Aparicio Alcade , A. L. L. de Lemos , N. F. Svaiter

Dicke superradiance is a collective phenomenon where the emission from ensembles of quantum emitters is coherently enhanced beyond the sum of each emitter's independent emission. Here, we propose a platform that exploits the delocalised…

How the mixed eigenstates vary with approaching the semiclassical limit in mixed-type many-body quantum systems is an interesting but still less known question. Here, we address this question in the Dicke model, a celebrated many-body model…

量子物理 · 物理学 2025-03-04 Qian Wang , Marko Robnik

We have studied quantum-mechanically a system of several small identical Josephson junctions in a lossless single-mode cavity for different initial states, under conditions such that the system is at resonance. This system is analogous to a…

超导电性 · 物理学 2009-11-07 W. A. Al-Saidi , D. Stroud

Interference of quasi bound states is studied in a ballistic electron ripple waveguide with two ripple cavities whose distance apart can be varied. This system is the waveguide analog of Dicke's model for two interacting atoms in a…

介观与纳米尺度物理 · 物理学 2015-05-13 Hoshik Lee , L. E. Reichl

We study the numerical solutions of the Dicke Hamiltonian, which describes a system of many two level atoms interacting with a monochromatic radiation field into a cavity. The Dicke model is an example of a quantum collective behavior which…

量子物理 · 物理学 2011-08-04 Miguel A. Bastarrachea-Magnani , Jorge G. Hirsch

We study a simple model describing superradiance in a system of two-level atoms interacting with a single-mode bosonic field. The model permits a continuous crossover between integrable and partially chaotic regimes and shows a complex…

量子物理 · 物理学 2017-06-07 Michal Kloc , Pavel Stransky , Pavel Cejnar

The superradiant phase transition in the dissipative Dicke lattice model, driven by on-site collective atom-photon interactions and inter-site photon hopping, is a cornerstone of nonequilibrium quantum many-body physics. However, little is…

量子物理 · 物理学 2025-08-15 Peng-Fei Wei , Yilun Xu , Fengxiao Sun , Qiongyi He , Peter Rabl , Zhihai Wang

We study the dynamical properties of the Dicke model for increasing spin length, as the system approaches the limit of a classical spin. First, we describe the emergence of collective excitations above the groundstate that converge to the…

量子物理 · 物理学 2013-10-24 L. Bakemeier , A. Alvermann , H. Fehske

Resonant interaction of a collection of two-level atoms with a single-mode coherent cavity field is considered in the framework of the Dicke model. We focus on the role of collective atomic effects in the phenomenon of collapses and…

量子物理 · 物理学 2009-10-31 G. Ramon , C. Brif , A. Mann

We study a generalization of a recently introduced Dicke trimer model [Phys. Rev. Lett. 128, 163601, Phys. Rev. Research 5, L042016], which allows for cavity losses and unbalanced light-matter interactions (in which rotating and…

量子物理 · 物理学 2023-11-06 Cheng Zhang , Pengfei Liang , Neill Lambert , Mauro Cirio