2000/08/30 by Nicole F. Bell, Bell, N. F., R. F. Sawyer +3
Computer Science · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Nonlinear Dynamics and Pattern Formation #Quantum Physics (quant-ph) #stochastic dynamics and bifurcation
paper · pdf · doi:10.48550/arxiv.quant-ph/0008133
openalex publication_date 2000/08/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We consider the time development of the density matrix for a system coupled to a thermal bath, in models that go beyond the standard two-level systems through addition of an energy excitation degree of freedom and through the possibility of the replacement of the spin algebra by a more complex algebra. We find conditions under which increasing the coupling to the bath above a certain level decreases the rate of entropy production, and in which the limiting behavior is a dissipationless sinusoidal oscillation that could be interpreted as the synchronization of many modes of the uncoupled system.