Criticality in Transport through the Quantum Ising Chain

Malte Vogl, Gernot Schaller, and Tobias Brandes
Phys. Rev. Lett. 109, 240402 – Published 11 December 2012
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Abstract

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.

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  • Received 29 August 2012

DOI:https://doi.org/10.1103/PhysRevLett.109.240402

© 2012 American Physical Society

Authors & Affiliations

Malte Vogl*, Gernot Schaller, and Tobias Brandes

  • Institut für Theoretische Physik, Technische Universität Berlin, Hardenbergstrasse 36, 10623 Berlin, Germany

  • *malte.vogl@tu-berlin.de
  • gernot.schaller@tu-berlin.de
  • tobias.brandes@tu-berlin.de

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Issue

Vol. 109, Iss. 24 — 14 December 2012

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