Korshunov instantons out of equilibrium

M. Titov; D. B. Gutman

doi:10.1103/PhysRevB.93.155428

Korshunov instantons out of equilibrium

M. Titov, D. B. Gutman

Department of Physics

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Zero-dimensional dissipative action possesses nontrivial minima known as Korshunov instantons. They have been known so far only for imaginary time representation that is limited to equilibrium systems. In this work we reconstruct and generalise Korshunov instantons using real-time Keldysh approach. This allows us to formulate the dissipative action theory for generic nonequilibrium conditions. Possible applications of the theory to transport in strongly biased quantum dots are discussed.

Original language	English
Article number	155428
Journal	Physical Review B
Volume	93
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevB.93.155428
State	Published - 22 Apr 2016

Bibliographical note

Funding Information:
This work has been supported by ISF (Grant No. 584/14), GIF (Grant No. 1167-165.14/2011), the Dutch Science Foundation NWO/FOM 13PR3118, and by the EU Network FP7-PEOPLE-2013-IRSES Grant No. 612624 "InterNoM". We acknowledge useful discussions with R. Berkovits, L. Bitton, I. Burmistrov, A. Frydman, I. Gornyi, A. Kamenev, A. Mirlin, R. Santos, and E. Dalla Torre.

Publisher Copyright:
©2016 American Physical Society.

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Korshunov instantons out of equilibrium

Abstract

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