Stochastic resonance and nonlinear response in a dissipative quantum two-state system
Pareek, T. P. · Mahato, Mangal C. · Jayannavar, A. M.
Original · EN
We study the dynamics of a dissipative two-level, system driven by a monochromatic ac field, starting from the usual spin-boson Hamiltonian. The quantum Langevin equations for the spin variables are obtained. The amplitude of the coherent oscillations in the average position of the particle is studied in the high temperature limit. The system exhibits quantum stochastic resonance in qualitative agreement with earlier numerical results.
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