We present a method that permits the calculation of the dynamical correlation functions for quantum systems. These are obtained by evaluating the generating functionals of the static moments of the relaxation functions in a self-consistent approximation that can be obtained by an appropriate extension of the effective potential theory.
Effective potential, Mori product and quantum dynamics / CUCCOLI A.; R. GIACHETTI; TOGNETTI V.; VAIA R.. - In: JOURNAL OF PHYSICS. A, MATHEMATICAL AND GENERAL. - ISSN 0305-4470. - STAMPA. - 31:(1998), pp. L419-L424. [10.1088/0305-4470/31/22/003]
Effective potential, Mori product and quantum dynamics
CUCCOLI, ALESSANDRO;GIACHETTI, RICCARDO;TOGNETTI, VALERIO;
1998
Abstract
We present a method that permits the calculation of the dynamical correlation functions for quantum systems. These are obtained by evaluating the generating functionals of the static moments of the relaxation functions in a self-consistent approximation that can be obtained by an appropriate extension of the effective potential theory.
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