Monteoliva D, Paz JP
Departamento de Fisica "J.J. Giambiagi," FCEN, UBA, Pabellon 1, Ciudad Universitaria, 1428 Buenos Aires, Argentina.
Phys Rev Lett. 2000 Oct 16;85(16):3373-6. doi: 10.1103/PhysRevLett.85.3373.
We show that for an open quantum system which is classically chaotic (a quartic double well with harmonic driving coupled to a sea of harmonic oscillators) the rate of entropy production has, as a function of time, two relevant regimes: For short times it is proportional to the diffusion coefficient (fixed by the system-environment coupling strength). For longer times (but before equilibration) there is a regime where the entropy production rate is fixed by the Lyapunov exponent. The nature of the transition time between both regimes is investigated.
我们表明，对于一个经典混沌的开放量子系统（一个具有谐波驱动且耦合到大量谐波振荡器的四次双阱），熵产生率作为时间的函数有两个相关区域：在短时间内，它与扩散系数成正比（由系统 - 环境耦合强度确定）。在较长时间（但在达到平衡之前），存在一个区域，其中熵产生率由李雅普诺夫指数确定。我们研究了这两个区域之间过渡时间的性质。
