Published:
Springer Science and Business Media LLC, 2021
Published in:
Nature Communications, 12 (2021) 1
Language:
English
DOI:
10.1038/s41467-021-23467-4
ISSN:
2041-1723
Origination:
Footnote:
Description:
AbstractBehavior 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.