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Entropy 2012, 14(11), 2081-2099; doi:10.3390/e14112081

Temperature Effects, Frieden–Hawkins’ Order-Measure, and Wehrl Entropy

La Plata Physics Institute, National University and CCT-CONICET, C. C. 727, La Plata 1900, Argentina
Physics Department, North Catholic University, Av. Angamos 0610, Antofagasta 1240000, Chile
Physics Department and IFISC-CSIC, University of Balearic Islands, Palma de Mallorca 07122, Spain
Exact and Natural Sciences Faculty, La Pampa National University, Uruguay 151, Santa Rosa 6300, La Pampa, Argentina
Author to whom correspondence should be addressed.
Received: 3 September 2012 / Revised: 20 October 2012 / Accepted: 22 October 2012 / Published: 26 October 2012
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We revisit the Frieden–Hawkins’ Fisher order measure with a consideration of temperature effects. To this end, we appeal to the semiclassical approach. The order-measure’s appropriateness is validated in the semiclassical realm with regard to two physical systems. Insight is thereby gained with respect to the relationships amongst semiclassical quantifiers. In particular, it is seen that Wehrl’s entropy is as good a disorder indicator as the Frieden–Hawkins’ one.
Keywords: order; semiclassical methods; quantum statistical mechanics; Husimi distributions order; semiclassical methods; quantum statistical mechanics; Husimi distributions
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Pennini, F.; Plastino, A.; Ferri, G.L. Temperature Effects, Frieden–Hawkins’ Order-Measure, and Wehrl Entropy. Entropy 2012, 14, 2081-2099.

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