標題: Nonequilibrium Transport at a Dissipative Quantum Phase Transition
作者: Chung, Chung-Hou
Le Hur, Karyn
Vojta, Matthias
Woelfle, Peter
電子物理學系
Department of Electrophysics
公開日期: 29-五月-2009
摘要: We investigate the nonequilibrium transport near a quantum phase transition in a generic and relatively simple model, the dissipative resonant level model, that has many applications for nanosystems. We formulate a rigorous mapping and apply a controlled frequency-dependent renormalization group approach to compute the nonequilibrium current in the presence of a finite bias voltage V and a finite temperature T. For V -> 0, we find that the conductance has its well-known equilibrium form, while it displays a distinct nonequilibrium profile at finite voltage.
URI: http://dx.doi.org/10.1103/PhysRevLett.102.216803
http://hdl.handle.net/11536/7214
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.102.216803
期刊: PHYSICAL REVIEW LETTERS
Volume: 102
Issue: 21
結束頁: 
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