Segal Dvira
Chemical Physics Theory Group, Department of Chemistry, University of Toronto, 80 Saint George St. Toronto, Ontario, Canada M5S 3H6.
Phys Rev E Stat Nonlin Soft Matter Phys. 2014 Jul;90(1):012148. doi: 10.1103/PhysRevE.90.012148. Epub 2014 Jul 31.
We study the transfer of heat in the nonequilibrium spin-boson model with an Ohmic dissipation. In the nonadiabatic limit we derive a formula for the thermal conductance based on a rate equation formalism at the level of the noninteracting blip approximation, valid for temperatures T>T(K), with T(K) as the Kondo temperature. We evaluate this expression analytically assuming either weak or strong couplings, and demonstrate that our results agree with exact relations. Far-from-equilibrium situations are further examined, showing a close correspondence to the linear response limit.
我们研究了具有欧姆耗散的非平衡自旋玻色子模型中的热传递。在非绝热极限下，我们基于非相互作用脉冲近似水平的速率方程形式，推导了一个适用于温度(T>T(K))（其中(T(K))为近藤温度）的热导率公式。我们在弱耦合或强耦合的假设下对该表达式进行了解析评估，并证明我们的结果与精确关系一致。我们进一步研究了远离平衡的情况，结果表明其与线性响应极限密切对应。
