Symmetry breaking in the double-well model: ohmic dissipation with unrelaxed (Feynman-Vernon) initial conditions

V. Čápek

The problem of asymptotic-time symmetry breaking for a particle in a symmetric double-well, interacting with phonons, is formulated for a standard minimal two-site model and for initially asymmetric particle distribution and thermal but unrelaxed phonons. The timeconvolutionless Generalized Master Equations can be handled explicitly in the Born approximation. Formally extending the solution to the infinite time, the criteria for the asymptotic-time symmetry breaking comply with those known for the relaxed initial condition.

Mots clés: master equation; phonons; polarons

Domaines: Articles anciens

V. Čápek. Symmetry breaking in the double-well model: ohmic dissipation with unrelaxed (Feynman-Vernon) initial conditions. Journal de Physique, 1989, 50 (7), pp.775-781. ⟨10.1051/jphys:01989005007077500⟩. ⟨jpa-00210955⟩