We present a new approximation scheme for dealing with the statistical mechanics of homogeneous and inhomogeneous systems. This new self-consistent method, based on a rigorous variational principle for the free energy, treats on equal footing the average order parameter and the fluctuations about it. it requires the choice of a trial Hamiltonian that defines an ensemble through which the thermodynamic averages can be calculated. In the present paper we apply the method to calculate the bulk phase diagram of a system described by the ~b~Hamiitonian.

On the Statistical-mechanics of Interfaces and Interfacial Fluctuations

MARINI BETTOLO MARCONI, Umberto;
1989-01-01

Abstract

We present a new approximation scheme for dealing with the statistical mechanics of homogeneous and inhomogeneous systems. This new self-consistent method, based on a rigorous variational principle for the free energy, treats on equal footing the average order parameter and the fluctuations about it. it requires the choice of a trial Hamiltonian that defines an ensemble through which the thermodynamic averages can be calculated. In the present paper we apply the method to calculate the bulk phase diagram of a system described by the ~b~Hamiitonian.
1989
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11581/241985
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