Criticality in transport through the quantum Ising chain.
Criticality in transport through the quantum Ising chain.
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通过量子伊辛链传输的关键性
DOI：
10.1103/physrevlett.109.240402
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发表时间：
2012
影响因子：
8.6
通讯作者：
T. Brandes
中科院分区：
文献类型：
--
作者：
M. Vogl;G. Schaller;T. Brandes
我们考虑由量子伊辛链耦合的两个水库之间的热输运作为量子临界多体系统中诱导的非平衡物理模型。通过推导速率方程的基础上产生的准粒子对在运输过程中的精确表达式，我们观察到签名的基本量子相变的稳态能量流已经在有限的和不同的水库温度。
We consider thermal transport between two reservoirs coupled by a quantum Ising chain as a model for nonequilibrium physics induced in quantum-critical many-body systems. By deriving rate equations based on exact expressions for the quasiparticle pairs generated during the transport, we observe signatures of the underlying quantum phase transition in the steady-state energy current already at finite and different reservoir temperatures.