Fisher information contains all HO-quantum-statistics already at the semiclassical level

We study here the difference between quantum statistical treatments and semiclassical ones, using as the main research tool a semiclassical, shift-invariant Fisher information measure built up with Husimi distributions. Its semiclassical character notwithstanding, this measure also contains abundant...

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Detalles Bibliográficos
Autores principales: Pennini, Flavia, Plastino, Ángel Luis, Ferri, Gustavo Luís
Formato: Articulo
Lenguaje:Inglés
Publicado: 2006
Materias:
Física
Information theory
Phase-space
Semiclassical information
Delocalization
Purity
Thermal uncertainties
Fisher measures
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/130800
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-130800
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Information theory
Phase-space
Semiclassical information
Delocalization
Purity
Thermal uncertainties
Fisher measures
spellingShingle Física
Information theory
Phase-space
Semiclassical information
Delocalization
Purity
Thermal uncertainties
Fisher measures
Pennini, Flavia
Plastino, Ángel Luis
Ferri, Gustavo Luís
Fisher information contains all HO-quantum-statistics already at the semiclassical level
topic_facet Física
Information theory
Phase-space
Semiclassical information
Delocalization
Purity
Thermal uncertainties
Fisher measures
description We study here the difference between quantum statistical treatments and semiclassical ones, using as the main research tool a semiclassical, shift-invariant Fisher information measure built up with Husimi distributions. Its semiclassical character notwithstanding, this measure also contains abundant information of a purely quantal nature. Such a tool allows us to refine the celebrated Lieb bound for Wehrl entropies and to discover thermodynamic-like relations that involve the degree of delocalization. Fisher-related thermal uncertainty relations are developed and the degree of purity of canonical distributions, regarded as mixed states, is connected to this Fisher measure as well.
format Articulo
Articulo
author Pennini, Flavia
Plastino, Ángel Luis
Ferri, Gustavo Luís
author_facet Pennini, Flavia
Plastino, Ángel Luis
Ferri, Gustavo Luís
author_sort Pennini, Flavia
title Fisher information contains all HO-quantum-statistics already at the semiclassical level
title_short Fisher information contains all HO-quantum-statistics already at the semiclassical level
title_full Fisher information contains all HO-quantum-statistics already at the semiclassical level
title_fullStr Fisher information contains all HO-quantum-statistics already at the semiclassical level
title_full_unstemmed Fisher information contains all HO-quantum-statistics already at the semiclassical level
title_sort fisher information contains all ho-quantum-statistics already at the semiclassical level
publishDate 2006
url http://sedici.unlp.edu.ar/handle/10915/130800
work_keys_str_mv AT penniniflavia fisherinformationcontainsallhoquantumstatisticsalreadyatthesemiclassicallevel
AT plastinoangelluis fisherinformationcontainsallhoquantumstatisticsalreadyatthesemiclassicallevel
AT ferrigustavoluis fisherinformationcontainsallhoquantumstatisticsalreadyatthesemiclassicallevel
bdutipo_str Repositorios
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