Effects of dissipation on disordered quantum spin models

We study the effects of the coupling to an Ohmic quantum environment on the static and dynamical properties of a class of disordered spin models in a transverse magnetic field using a method of direct spin summation. We discuss the influence of the environment on various features of the phase diagra...

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Detalles Bibliográficos
Autores principales: Cugliandolo, L.F., Grempel, D.R., Lozano, G., Lozza, H.
Formato: JOUR
Materias:
article
environment
magnetic field
molecular dynamics
molecular model
molecular stability
quantum mechanics
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01631829_v70_n2_p024422_Cugliandolo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:We study the effects of the coupling to an Ohmic quantum environment on the static and dynamical properties of a class of disordered spin models in a transverse magnetic field using a method of direct spin summation. We discuss the influence of the environment on various features of the phase diagram of the models as well as on the stability of the possible phases.

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