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Listar por autor "Relaño, Armando"
Mostrando ítems 1-12 de 12
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Ponencia
A beyond mean field study of Bose gases in a double-well potential with a Feshbach resonance
Pérez Fernández, Pedro; Relaño, Armando; Dukelsky, Jorge; Arias Carrasco, José Miguel (American Institute of Physics, 2012)The Bose-Hubbard model coupled to a Feshbach resonance is studied. Quantum phase transitions are analyzed within a beyond ...
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Ponencia
Connection between decoherence and excited state quantum phase transitions
Pérez Fernández, Pedro; Relaño, Armando; Arias Carrasco, José Miguel; Dukelsky, Jorge; García Ramos, José Enrique (American Institute of Physics, 2009)In this work we explore the relationship between an excited state quantum phase transition (ESQPT) and the phenomenon of ...
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Ponencia
Decoherence and quantum quench: Their relationship with excited state quantum phase transitions
García Ramos, José Enrique; Arias Carrasco, José Miguel; Cejnar, Pavel; Dukelsky, Jorge; Pérez Fernández, Pedro; Relaño, Armando (American Institute of Physics, 2012)We study the similarities and differences between the phenomena of Quantum Decoherence and Quantum Quench in presence of ...
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Ponencia
Decoherence as a Signature of an Excited State Quantum Phase Transition in Two Level Boson Systems
García Ramos, José Enrique; Arias Carrasco, José Miguel; Dukelsky, Jorge; Pérez Fernández, Pedro; Relaño, Armando (American Institute of Physics, 2009)We analyze the decoherence induced on a single qubit by the interaction with a two-level boson system with critical internal ...
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Artículo
Decoherence as a signature of an excited-state quantum phase transition
Relaño, Armando; Arias Carrasco, José Miguel; Dukelsky, Jorge; García Ramos, José Enrique; Pérez Fernández, Pedro (American Physical Society, 2008)We analyze the decoherence induced on a single qubit by the interaction with a two-level boson system with critical internal ...
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Artículo
Decoherence due to an excited-state quantum phase transition in a two-level boson model
Pérez Fernández, Pedro; Relaño, Armando; Arias Carrasco, José Miguel; Dukelsky, Jorge; García Ramos, José Enrique (American Physical Society, 2009)The decoherence induced on a single qubit by its interaction with the environment is studied. The environment is modeled ...
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Tesis Doctoral
Estudio de transiciones de fase cuánticas en sistemas de dos niveles
Pérez Fernández, Pedro (2011)El trabajo se estructura en 6 capítulos. El capítulo 1 posee fundamentalmente un carácter de introducción teórica a las ...
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Ponencia
Excited state quantum phase transitions and chaos in the Dicke model
Pérez Fernández, Pedro; Relaño, Armando; Cejnar, Pavel; Arias Carrasco, José Miguel; Dukelsky, Jorge; García Ramos, José Enrique (American Institute of Physics, 2012)In this contribution, the critical behavior of excited state quantum phase transitions (ESQPT's) and its relation to order ...
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Artículo
Excited-state phase transition and onset of chaos in quantum optical models
Pérez Fernández, Pedro; Relaño, Armando; Arias Carrasco, José Miguel; Cejnar, P.; Dukelsky, Jorge; García Ramos, José Enrique (American Physical Society, 2011)We study the critical behavior of excited states and its relation to order and chaos in the Jaynes-Cummings and Dicke ...
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Artículo
From thermal to excited-state quantum phase transition: The Dicke model
Pérez Fernández, Pedro; Relaño, Armando (American Physical Society, 2017-07)We study the thermodynamics of the full version of the Dicke model, including all the possible values of the total angular ...
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Artículo
Quantum phase transitions of atom-molecule Bose mixtures in a double-well potential
Arias Carrasco, José Miguel; Relaño, Armando; Dukelsky, Jorge; Pérez Fernández, Pedro (2014)The ground state and spectral properties of Bose gases in double-well potentials are studied in two different scenarios: ...
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Artículo
Quantum quench influenced by an excited-state phase transition
Pérez Fernández, Pedro; Cejnar, P.; Arias Carrasco, José Miguel; Dukelsky, Jorge; García Ramos, José Enrique; Relaño, Armando (American Physical Society, 2011)We analyze excited-state quantum phase transitions (ESQPTs) in three schematic (integrable and nonintegrable) models ...