Artículo
Geometric phase in a dissipative Jaynes-Cummings model: theoretical explanation for resonance robustness
Fecha de publicación:
02/2022
Editorial:
American Physical Society
Revista:
Physical Review A: Atomic, Molecular and Optical Physics
ISSN:
1050-2947
e-ISSN:
2469-9934
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We follow a generalized kinematic approach to compute the geometric phases acquired in both unitary and dissipative Jaynes-Cummings models, which provide a fully quantum description for a two-level system interacting with a single mode of the (cavity) electromagnetic field, in a perfect or dissipative cavity, respectively. In the dissipative model, the nonunitary effects arise from the outflow of photons through the cavity walls and the incoherent pumping of the two-level system. Our approach allows to compare the geometric phases acquired in these models, leading to an exhaustive characterization of the corrections introduced by the presence of the environment. We also provide geometric interpretations for the observed behaviors. When the resonance condition is satisfied, we show the geometric phase is robust, exhibiting a vanishing correction under a nonunitary evolution. This fact is supported with a geometrical explanation as well.
Palabras clave:
Geometric phases
,
Jaynes-Cummings
,
Cavity QED
,
Decoherence
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Articulos(IFIBA)
Articulos de INST.DE FISICA DE BUENOS AIRES
Articulos de INST.DE FISICA DE BUENOS AIRES
Citación
Viotti, Ludmila; Lombardo, Fernando Cesar; Villar, Paula Ines; Geometric phase in a dissipative Jaynes-Cummings model: theoretical explanation for resonance robustness; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 105; 2-2022; 222181-222189
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