Cited by 211Quantum and electron transport phenomenaQuantum chaos and dynamical systemsQuantum many-body systems

Iterative real-time path integral approach to nonequilibrium quantum transport

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Weiss, S., Eckel, J., Thorwart, M., Egger, R.·2008·Physical Review B

Abstract

We have developed a numerical approach to compute real-time path integral expressions for quantum transport problems out of equilibrium. The scheme is based on a deterministic iterative summation of the path integral for the generating function of the nonequilibrium current. Self-energies due to the leads, being nonlocal in time, are fully taken into account within a finite memory time, thereby including non-Markovian effects, and numerical results are extrapolated both to vanishing (Trotter) time discretization and to infinite memory time. This extrapolation scheme converges except at very low temperatures, and the results are then numerically exact. The method is applied to nonequilibrium transport through an Anderson dot.

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Crossref · 10.1103/physrevb.77.195316

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  • Non-equilibrium exchanges between system and environment can have considerable influence on the system dynamics.

    “This and other non-equilibrium exchanges between system and environment can have considerable influence on the system dynamics [28-35], influence the direction of energy transfer [28] and may even lead to the generation of long-lived quantum coherence in the system [28, 36-38].”

    From Vibrations, quanta and biology (2013) · cites this paper as [31]

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  1. [32]Very recent progress on the application of the numerical renormalization group method out of equilibrium has been reported by F.B. Anders and A. Schiller, Phys. Rev. B 74 , 245113 (2006); F.B. Anders, preprint arXiv:0802.0371. · arXiv
  2. [45]A. Kamenev, in Nanophysics: Coherence and Transport , Les Houches session LXXXI, ed. H. Bouchiat, Y. Gefen, S. Gu´ eron, G. Montambaux, and J. Dalibard (Elsevier, New York, 2005).

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Authors
Weiss, S., Eckel, J., Thorwart, M., & Egger, R.
Affiliations
Heinrich Heine University Düsseldorf (DE)
Venue
Physical Review B
Published
2008-05-15
Volume
77
Issue
19
ISSN
  • 1098-0121 (ISSN-L)
  • 1550-235X
OpenAlex
W1983016196
Cited by
211
References
74
Citations by year
2026: 4 · 2025: 4 · 2024: 4 · 2023: 8 · 2022: 11 · 2021: 6 · 2020: 13 · 2019: 9 · 2018: 10 · 2017: 7 · 2016: 10 · 2015: 14 · 2014: 12 · 2013: 24 · 2012: 15
FWCI
11.61
Type
journal article
Language
en
Open access
Locations
  • Physical Review B (publishedVersion)
  • arXiv (Cornell University) (publishedVersion)
  • arXiv (Cornell University)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum and electron transport phenomena
  • Physical Sciences › Physics and Astronomy › Statistical and Nonlinear Physics › Quantum chaos and dynamical systems
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum many-body systems
Keywords
nonequilibrium quantum transport, real-time path integral, self-energy, non-Markovian effects

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