We present the calculations of equilibrium thermodynamic properties of the quantum Morse chain using a variational method. By generalizing the Morse potential to a form which allows a continuous crossover to the completely integrable Toda chain, we systematically compare the thermodynamics of these two systems.
QUANTUM THERMODYNAMICS OF ONE-DIMENSIONAL SYSTEMS WITH MORSE-TYPE POTENTIALS / A.R. VOLKEL; A. CUCCOLI; M. SPICCI; V. TOGNETTI. - In: PHYSICS LETTERS A. - ISSN 0375-9601. - STAMPA. - 182:(1993), pp. 60-64. [10.1016/0375-9601(93)90053-3]
QUANTUM THERMODYNAMICS OF ONE-DIMENSIONAL SYSTEMS WITH MORSE-TYPE POTENTIALS
CUCCOLI, ALESSANDRO;TOGNETTI, VALERIO
1993
Abstract
We present the calculations of equilibrium thermodynamic properties of the quantum Morse chain using a variational method. By generalizing the Morse potential to a form which allows a continuous crossover to the completely integrable Toda chain, we systematically compare the thermodynamics of these two systems.
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