Department of Medical Physics and Biophysics, University of Split School of Medicine, 21000 Split, Croatia.
Department of Physics, Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, 1000 Ljubljana, Slovenia.
Phys Rev E. 2017 May;95(5-1):052141. doi: 10.1103/PhysRevE.95.052141. Epub 2017 May 25.
Based on generalization and extension of our previous work [Phys. Rev. Lett. 112, 067201 (2014)PRLTAO0031-900710.1103/PhysRevLett.112.067201] to multiple independent Markovian baths we will compute the charge and spin current statistics of the open Hubbard model with weak system-bath coupling up to next-to-leading order in the coupling parameter. Only the next-to-leading and higher orders depend on the Hubbard interaction parameter. The physical results are related to those for the XXZ model in the analogous setup implying a certain universality, which potentially holds in this class of nonequilibrium models.
基于我们之前的工作[Phys. Rev. Lett. 112, 067201 (2014)PRLTAO0031-900710.1103/PhysRevLett.112.067201]的推广和扩展，应用于多个独立的马尔可夫浴，我们将计算弱系统-浴耦合的开尔文哈伯模型的电荷和自旋电流统计，直至耦合参数的次领头阶。只有次领头阶和更高阶次依赖于哈伯相互作用参数。物理结果与类似设置中的 XXZ 模型的结果相关，这暗示了某种普遍性，这种普遍性可能在这一类非平衡模型中成立。
