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Three-body correlations in nonlinear response of correlated quantum liquid.

ABSTRACT: Behavior of quantum liquids is a fascinating topic in physics. Even in a strongly correlated case, the linear response of a given system to an external field is described by the fluctuation-dissipation relations based on the two-body correlations in the equilibrium. However, to explore nonlinear non-equilibrium behaviors of the system beyond this well-established regime, the role of higher order correlations starting from the three-body correlations must be revealed. In this work, we experimentally investigate a controllable quantum liquid realized in a Kondo-correlated quantum dot and prove the relevance of the three-body correlations in the nonlinear conductance at finite magnetic field, which validates the recent Fermi liquid theory extended to the non-equilibrium regime.

SUBMITTER: Hata T

PROVIDER: S-EPMC8163827 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature

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Three-body correlations in nonlinear response of correlated quantum liquid.

Hata Tokuro T Teratani Yoshimichi Y Arakawa Tomonori T Lee Sanghyun S Ferrier Meydi M Deblock Richard R Sakano Rui R Oguri Akira A Kobayashi Kensuke K

Nature communications 20210528 1

Behavior of quantum liquids is a fascinating topic in physics. Even in a strongly correlated case, the linear response of a given system to an external field is described by the fluctuation-dissipation relations based on the two-body correlations in the equilibrium. However, to explore nonlinear non-equilibrium behaviors of the system beyond this well-established regime, the role of higher order correlations starting from the three-body correlations must be revealed. In this work, we experimenta ...[more]

PMID: 34050168

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