Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, NL-9747AG Groningen, The Netherlands.
Institute for Advanced Simulation, Jülich Supercomputing Centre, Forschungszentrum Jülich, D-52425 Jülich, Germany.
Phys Rev E. 2017 Nov;96(5-1):053306. doi: 10.1103/PhysRevE.96.053306. Epub 2017 Nov 13.
It is shown that by fitting a Markovian quantum master equation to the numerical solution of the time-dependent Schrödinger equation of a system of two spin-1/2 particles interacting with a bath of up to 34 spin-1/2 particles, the former can describe the dynamics of the two-spin system rather well. The fitting procedure that yields this Markovian quantum master equation accounts for all non-Markovian effects in as much the general structure of this equation allows and yields a description that is incompatible with the Lindblad equation.
研究表明，通过将马尔可夫量子主方程拟合到两个自旋-1/2 粒子与多达 34 个自旋-1/2 粒子的浴相互作用的含时薛定谔方程的数值解，前者可以很好地描述两自旋系统的动力学。这种马尔可夫量子主方程的拟合过程考虑了所有非马尔可夫效应，只要这个方程的一般结构允许，并且得到的描述与林德布拉德方程不兼容。
