The aim of the explicit evaluation of the equilibrium thermodynamic properties of the quantum Toda lattice is here reached by a method which reduces the evaluation of quantum statistical averages to a classical configurational integral. This is done by constructing an effective potential of the same form as the original one, whose parameters are renormalized by the quantum fluctuations. In addition to quantum specific heat (in agreement with Bethe ansatz calculations), explicit results for meaningful static correlation functions are reported.

THERMODYNAMICS AND CORRELATIONS OF THE QUANTUM TODA LATTICE / A. CUCCOLI; M. SPICCI; V. TOGNETTI; R. VAIA. - In: PHYSICAL REVIEW. B, CONDENSED MATTER. - ISSN 0163-1829. - STAMPA. - 45:(1992), pp. 10127-10130. [10.1103/PhysRevB.45.10127]

THERMODYNAMICS AND CORRELATIONS OF THE QUANTUM TODA LATTICE

CUCCOLI, ALESSANDRO;TOGNETTI, VALERIO;
1992

Abstract

The aim of the explicit evaluation of the equilibrium thermodynamic properties of the quantum Toda lattice is here reached by a method which reduces the evaluation of quantum statistical averages to a classical configurational integral. This is done by constructing an effective potential of the same form as the original one, whose parameters are renormalized by the quantum fluctuations. In addition to quantum specific heat (in agreement with Bethe ansatz calculations), explicit results for meaningful static correlation functions are reported.
1992
45
10127
10130
A. CUCCOLI; M. SPICCI; V. TOGNETTI; R. VAIA
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/355083
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