IFLP 13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
Information geometry and phase transitions
Autor/es:
M. PORTESI; A. PLASTINO; F. PENNINI
Revista:
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
Editorial:
World Scientific Publishing Company
Referencias:
Año: 2006 vol. 20 p. 5250 - 5253
ISSN:
0217-9792
Resumen:
We present, from an information theoretic viewpoint, an analysis of phase transitions and critical phenomena in quantum systems. Our study is based on geometrical considerations within the Riemannian space of thermodynamic parameters that characterize the system. A metric for the space can be derived from an appropriate definition of distance between quantum states. For this purpose, we consider generalized á-divergences that include the standard KullbackLeibler relative entropy. The use of other measures of information distance is taken into account, and the thermodynamic stability of the system is discussed from this geometric perspective.
