N. S. Tonchev and J. G. Brankov. Some inequalities in the fidelity approach to phase transitions
Submitted on: Dec 27, 2012, 13:15:27
Natural Sciences / Physics / General Physics
Description: We present some aspects of the fidelity approach to phase transitions based on lower and upper bounds on the fidelity susceptibility that are expressed in terms of thermodynamic quantities. Both commutative and non commutative cases are considered. In the commutative case, in addition, a relation between the fidelity and the nonequilibrium work done on the system in a process from an equilibrium initial state to an equilibrium final state has been obtained by using the Jarzynski equality.
The abstract of this article will be published in the December 2012 issue of "Intellectual Archive Bulletin", ISSN 1929-1329.
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