Universal Fermi liquid crossover and quantum criticality in a mesoscopic system

A. J. Keller, L. Peeters, C. P. Moca, I. Weymann, D. Mahalu, V. Umansky, G. Zaránd and D. Goldhaber-Gordon ()
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A. J. Keller: Geballe Laboratory for Advanced Materials, Stanford University
L. Peeters: Geballe Laboratory for Advanced Materials, Stanford University
C. P. Moca: BME-MTA Exotic Quantum Phases “Lendület” Group, Institute of Physics, Budapest University of Technology and Economics
I. Weymann: Faculty of Physics, Adam Mickiewicz University
D. Mahalu: Weizmann Institute of Science
V. Umansky: Weizmann Institute of Science
G. Zaránd: BME-MTA Exotic Quantum Phases “Lendület” Group, Institute of Physics, Budapest University of Technology and Economics
D. Goldhaber-Gordon: Geballe Laboratory for Advanced Materials, Stanford University

Nature, 2015, vol. 526, issue 7572, 237-240

Abstract: Zero-temperature quantum phase transitions and their associated quantum critical points are believed to underpin the exotic finite-temperature behaviours of many strongly correlated electronic systems, but identifying the microscopic origins of these transitions can be challenging and controversial; Keller et al. (see also the related paper by Iftikhar et al.) show how such behaviours can be engineered into nanoelectronic quantum dots, which permit both precise experimental control of the quantum critical behaviour and its exact theoretical characterization.

Date: 2015
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DOI: 10.1038/nature15261

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