2021/05/28 by Tokuro Hata, Yoshimichi Teratani, Tomonori Arakawa +6 · 15 citations
Chemistry · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Conductance #Fermi liquid theory #Magnetic field #Nonlinear system #Quantum #Quantum and electron transport phenomena #Quantum dot #Quantum system #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall #cond-mat.str-el
paper · pdf · doi:10.1038/s41467-021-23467-4
published in Nature Communications 12(1), 3233 (Nature Portfolio)
openalex publication_date 2021/05/28 · arxiv created 2021/05/31 · arxiv updated 2021/06/01 · openalex created_date 2021/06/07 · openalex updated_date 2026/08/06
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.