Fisher information and semiclassical treatments

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

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Detalles Bibliográficos
Autores principales: Pennini, Flavia, Ferri, Gustavo L., Plastino, Ángel Luis
Formato: Articulo Contribucion a revista
Lenguaje:Inglés
Publicado: 2009
Materias:
Ciencias Exactas
Física
delocalization
fisher measures
information theory
phase space
purity
semiclassical information
thermal uncertainties
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/37578
http://www.mdpi.com/1099-4300/11/4/972
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-37578
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
delocalization
fisher measures
information theory
phase space
purity
semiclassical information
thermal uncertainties
spellingShingle Ciencias Exactas
Física
delocalization
fisher measures
information theory
phase space
purity
semiclassical information
thermal uncertainties
Pennini, Flavia
Ferri, Gustavo L.
Plastino, Ángel Luis
Fisher information and semiclassical treatments
topic_facet Ciencias Exactas
Física
delocalization
fisher measures
information theory
phase space
purity
semiclassical information
thermal uncertainties
description We review here the difference between quantum statistical treatments and semiclassical ones, using as the main concomitant 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
Contribucion a revista
author Pennini, Flavia
Ferri, Gustavo L.
Plastino, Ángel Luis
author_facet Pennini, Flavia
Ferri, Gustavo L.
Plastino, Ángel Luis
author_sort Pennini, Flavia
title Fisher information and semiclassical treatments
title_short Fisher information and semiclassical treatments
title_full Fisher information and semiclassical treatments
title_fullStr Fisher information and semiclassical treatments
title_full_unstemmed Fisher information and semiclassical treatments
title_sort fisher information and semiclassical treatments
publishDate 2009
url http://sedici.unlp.edu.ar/handle/10915/37578
http://www.mdpi.com/1099-4300/11/4/972
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bdutipo_str Repositorios
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