Nonequilibrium transport at a dissipative quantum phase transition
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
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.
Details
Original language | English |
---|---|
Article number | 216803 |
Journal | Physical review letters |
Volume | 102 |
Issue number | 21 |
Publication status | Published - 26 May 2009 |
Peer-reviewed | Yes |
Externally published | Yes |