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Duality relations for charge transfer statistics

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A. Komnik

Mesoscale and Nanoscale Physics · Submitted 19 Jun 2017

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim By a detailed study of the mathematical structure of the cumulant generating function (CGF) of particle transfer in the non-interacting case we show that it satisfies duality relations connecting the CGFs of two different realizations of the same system.

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arXiv ID1706.05992 (version 1)
Pith IDYNB3Q7CD, Pith's permanent record of this paper and its review
CitationA. Komnik. "Duality relations for charge transfer statistics." arXiv:1706.05992 (2017). https://pith.science/paper/YNB3Q7CD
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By a detailed study of the mathematical structure of the cumulant generating function (CGF) of particle transfer in the non-interacting case we show that it satisfies duality relations connecting the CGFs of two different realizations of the same system. Employing these identities we derive an infinite number of relations between different cumulants, which amounts to a generalization of the fluctuation-dissipation theorem to non-equilibrium situations. We generalize the concept to multi-terminal set-ups and show that duality relations also exist for genuinely interacting systems by explicitly deriving one of them for the two-terminal anisotropic Kondo impurity model and discussing other important examples. The discovered identities are useful tools in the ongoing investigation of the analytical properties of the cumulant generating functions of charge transport.

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#sentencerolethe authors' own workstates the main conclusionstrength
s0 By a detailed study of the mathematical structure of the cumulant generating function (CGF) of particle transfer in the non-interacting case we show that it satisfies duality relations connecting the CGFs of two different realizations of the same system. result 0.62 0.95 0.70 asserted 1.00
s1 Employing these identities we derive an infinite number of relations between different cumulants, which amounts to a generalization of the fluctuation-dissipation theorem to non-equilibrium situations. result 0.86 0.95 0.31 asserted 1.00
s2 We generalize the concept to multi-terminal set-ups and show that duality relations also exist for genuinely interacting systems by explicitly deriving one of them for the two-terminal anisotropic Kondo impurity model and discussing other important examples. contribution 0.66 0.96 0.27 asserted 1.00
s3 The discovered identities are useful tools in the ongoing investigation of the analytical properties of the cumulant generating functions of charge transport. interpretation 0.90 0.52 0.08 asserted 0.99

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The paper
Original abstract

By a detailed study of the mathematical structure of the cumulant generating function (CGF) of particle transfer in the non-interacting case we show that it satisfies duality relations connecting the CGFs of two different realizations of the same system. Employing these identities we derive an infinite number of relations between different cumulants, which amounts to a generalization of the fluctuation-dissipation theorem to non-equilibrium situations. We generalize the concept to multi-terminal set-ups and show that duality relations also exist for genuinely interacting systems by explicitly deriving one of them for the two-terminal anisotropic Kondo impurity model and discussing other important examples. The discovered identities are useful tools in the ongoing investigation of the analytical properties of the cumulant generating functions of charge transport.

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