2001
DOI: 10.1088/0305-4470/34/23/311
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Wehrl's entropy and a measure of intermode correlations in phase space

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Cited by 28 publications
(8 citation statements)
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“…The Wehrl entropy of a quantum state is defined as [ 17 ] where H is the Husimi quasi-distribution function [ 15 ], with , and represents the total phase space. Mathematically speaking, it is positive (as the von Newman entropy) and of unit minimum value [ 24 ]. For physical problems including spin, the spin coherent state representation is the adapted description due to the algebraic characteristics of the angular momentum operator J .…”
Section: Model Equations and Mathematical Formulasmentioning
confidence: 99%
“…The Wehrl entropy of a quantum state is defined as [ 17 ] where H is the Husimi quasi-distribution function [ 15 ], with , and represents the total phase space. Mathematically speaking, it is positive (as the von Newman entropy) and of unit minimum value [ 24 ]. For physical problems including spin, the spin coherent state representation is the adapted description due to the algebraic characteristics of the angular momentum operator J .…”
Section: Model Equations and Mathematical Formulasmentioning
confidence: 99%
“…Moreover, the Wehrl entropy used as good measure for entanglement generation due to atom-field interactions [14,15,16]. The Q-Husimi function and Wehrl entropy can be applied in finding the intermode correlations in phase space [17,18].…”
Section: Introductionmentioning
confidence: 99%
“…Esta es una consecuencia también del principio de incertidumbre pues prohibe funciones de Wigner muy localizadas. Queda manifiesta una relación entre localización en el espacio fase y el principio de incertidumbre que ha sido explorada en la literatura [16,17,13,14,15,61,62,63,64].…”
Section: Propiedades De La Función De Wignerunclassified
“…Wehrl introdujo el concepto de entropía de una distribución en espacio fase cuántico [114] y la definió en términos de la función de Husimi [64,62].…”
Section: Definiciónunclassified