Decoherence, Anti-Decoherence, and Fisher Information

In this work, we study quantum decoherence as reflected by the dynamics of a system that accounts for the interaction between matter and a given field. The process is described by an important information geometry tool: Fisher’s information measure (FIM). We find that it appropriately describes this...

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Autores principales: Kowalski, Andrés Mauricio, Plastino, Ángel Luis
Formato: Articulo
Lenguaje:Inglés
Publicado: 2021
Materias:
Física
Ciencias Exactas
information geometry
Fisher information
semiclassical descriptions
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/125435
https://www.mdpi.com/1099-4300/23/8/1035
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-125435
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Ciencias Exactas
information geometry
Fisher information
semiclassical descriptions
spellingShingle Física
Ciencias Exactas
information geometry
Fisher information
semiclassical descriptions
Kowalski, Andrés Mauricio
Plastino, Ángel Luis
Decoherence, Anti-Decoherence, and Fisher Information
topic_facet Física
Ciencias Exactas
information geometry
Fisher information
semiclassical descriptions
description In this work, we study quantum decoherence as reflected by the dynamics of a system that accounts for the interaction between matter and a given field. The process is described by an important information geometry tool: Fisher’s information measure (FIM). We find that it appropriately describes this concept, detecting salient details of the quantum–classical changeover (qcc). A good description of the qcc report can thus be obtained; in particular, a clear insight into the role that the uncertainty principle (UP) plays in the pertinent proceedings is presented. Plotting FIM versus a system’s motion invariant related to the UP, one can also visualize how anti-decoherence takes place, as opposed to the decoherence process studied in dozens of papers. In Fisher terms, the qcc can be seen as an order (quantum)–disorder (classical, including chaos) transition.
format Articulo
Articulo
author Kowalski, Andrés Mauricio
Plastino, Ángel Luis
author_facet Kowalski, Andrés Mauricio
Plastino, Ángel Luis
author_sort Kowalski, Andrés Mauricio
title Decoherence, Anti-Decoherence, and Fisher Information
title_short Decoherence, Anti-Decoherence, and Fisher Information
title_full Decoherence, Anti-Decoherence, and Fisher Information
title_fullStr Decoherence, Anti-Decoherence, and Fisher Information
title_full_unstemmed Decoherence, Anti-Decoherence, and Fisher Information
title_sort decoherence, anti-decoherence, and fisher information
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/125435
https://www.mdpi.com/1099-4300/23/8/1035
work_keys_str_mv AT kowalskiandresmauricio decoherenceantidecoherenceandfisherinformation
AT plastinoangelluis decoherenceantidecoherenceandfisherinformation
bdutipo_str Repositorios
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