Zobrazeno 1 - 10
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pro vyhledávání: '"Dicke model"'
Akademický článek
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Publikováno v:
Entropy, Vol 26, Iss 7, p 574 (2024)
Phase and amplitude modes, also called polariton modes, are emergent phenomena that manifest across diverse physical systems, from condensed matter and particle physics to quantum optics. We study their behavior in an anisotropic Dicke model that inc
Externí odkaz:
https://doaj.org/article/17cb5f35abca4d5ca6499bd01cafd560
Akademický článek
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Publikováno v:
Results in Physics, Vol 55, Iss , Pp 107157- (2023)
In this work, we use a deformed version of the Heisenberg–Weyl algebra in the Dicke Model to incorporate a Kerr medium and nonlinear interaction between matter and radiation fields. The deformed algebra allows us to define two distinct nonlinear co
Externí odkaz:
https://doaj.org/article/5111e0bd590b4b298d3b5dee890e99b4
Publikováno v:
Jurnal Fisika Flux, Vol 19, Iss 3, Pp 180-186 (2022)
Entanglement is a property of interacting particles in a quantum system. The measure of the interaction can be known by looking for the entanglement entropy value in the system. The quantum system used in this study is the Dicke model quantum system
Externí odkaz:
https://doaj.org/article/66bbc55c3b4e4c84a7d51e5b6bef9429
Publikováno v:
New Journal of Physics, Vol 26, Iss 8, p 083022 (2024)
Quantum coherence, the ability of a system to be in a quantum superposition of pure states, is a distinct feature of quantum mechanics that has no direct analog in classical mechanics. Quantum states that possess coherence efficiently outperform thei
Externí odkaz:
https://doaj.org/article/a38d3012a3304c559f95536c8688d285
Publikováno v:
Entropy, Vol 26, Iss 1, p 87 (2024)
In this work, we theoretically study a finite and undamped two-mode optomechanical model consisting of a high quality optical cavity containing a thin, elastic, and dielectric membrane. The main objective is to investigate the precursors of quantum p
Externí odkaz:
https://doaj.org/article/f62334e894cf4d7e970a23d7801667a1
Autor:
Wen Liu, Liwei Duan
Publikováno v:
Entropy, Vol 25, Iss 11, p 1492 (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
Externí odkaz:
https://doaj.org/article/e8869cc9bc374c5f8a1a63ed21780006
Autor:
Xiang Zhang, Miriam Blaauboer
Publikováno v:
Frontiers in Physics, Vol 10 (2023)
We theoretically investigate the enhancement of the charging power in a Dicke quantum battery which consists of an array of N two-level systems (TLS)coupled to a single mode of cavity photons. In the limit of small N, we analytically solve the time e
Externí odkaz:
https://doaj.org/article/400776bafd6d45b3be38c1d7b6e66ee4
Publikováno v:
Results in Physics, Vol 40, Iss , Pp 105813- (2022)
We in this paper study the macroscopic quantum states of a PT-symmetric Non-Hermitian Hamiltonian for N quantum-dots of two imaginary-levels in an optical cavity. The eigenstate energies are obtained in terms of spin-coherent-state variational method
Externí odkaz:
https://doaj.org/article/adee4c4a1f5541f29428576fb64df724