Zobrazeno 1 - 10
of 442
pro vyhledávání: '"Alcalde, M. A."'
Autor:
Arroyo, E. Aldo, Alcalde, M. Aparicio
Interesting phenomena occur when an eccentric rigid body rolls on an inclined or horizontal plane. For example, a variety of motions between rolling and sliding are exhibited until suddenly a jump occurs. We provide a detailed theoretical description
Externí odkaz:
http://arxiv.org/abs/2303.09420
We analyze a quantum heat engine described by the full Dicke model. The system exhibit quantum phase transitions under certain conditions. We consider the system performing a Stirling thermodynamic cycle. We obtain an enhancement of efficiency when d
Externí odkaz:
http://arxiv.org/abs/1906.00292
Autor:
Sorokin, A. V., Alcalde, M. Aparicio, Bastidas, V. M., Engelhardt, G., Angelakis, D. G., Brandes, T.
In this work we study a one-dimensional lattice of Lipkin-Meshkov-Glick models with alternating couplings between nearest-neighbors sites, which resembles the Su-Schrieffer-Heeger model. Typical properties of the underlying models are present in our
Externí odkaz:
http://arxiv.org/abs/1604.08023
Akademický článek
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Sonoluminescence is a process in which a strong sound field is used to produce light in liquids. We explain sonoluminescence as a phase transition from ordinary fluorescence to a superradiant phase. We consider a spin-boson model composed of a single
Externí odkaz:
http://arxiv.org/abs/1408.3932
We consider the Dicke model in the ultra-strong coupling limit to investigate thermal phase transitions and their precursors at finite particle numbers $N$ for bosonic and fermionic systems. We derive partition functions with degeneracy factors that
Externí odkaz:
http://arxiv.org/abs/1204.2271
We consider the full Dicke spin-boson model composed by a single bosonic mode and an ensemble of $N$ identical two-level atoms with different couplings for the resonant and anti-resonant interaction terms, and incorporate a dipole-dipole interaction
Externí odkaz:
http://arxiv.org/abs/1107.2945
Autor:
Alcalde, M. Aparicio, Pimentel, B. M.
The full Dicke model describes a system of $N$ identical two level-atoms coupled to a single-mode quantized bosonic field. The model considers rotating and counter-rotating coupling terms between the atoms and the bosonic field, with coupling constan
Externí odkaz:
http://arxiv.org/abs/1011.3075
The Dicke spin-boson model is composed by a single bosonic mode and an ensemble of $N$ identical two-level atoms. Assuming thermal equilibrium with a reservoir at temperature $\beta^{-1}$, we consider the situation where the coupling between the boso
Externí odkaz:
http://arxiv.org/abs/0909.1725
Publikováno v:
J.Math.Phys.50:013511,2009
We consider spin-boson models composed by a single bosonic mode and an ensemble of $N$ identical two-level atoms. The situation where the coupling between the bosonic mode and the atoms generates real and virtual processes is studied, where the whole
Externí odkaz:
http://arxiv.org/abs/0807.0639