Leggett-Garg inequality in electron interferometers

Article

关键词: MAGNETIC-FLUX;    EXPERIMENTAL VIOLATION;    QUANTUM LIMITATIONS;    BELLS-INEQUALITY;    INTERFERENCE;    COHERENT;    REALISM;    MECHANICS;    STATE;   

DOI  :  10.1103/PhysRevB.86.235447

来源: SCIE

【 摘 要 】

We consider the violation of the Leggett-Garg inequality in electronic Mach-Zehnder inteferometers. This setup has two distinct advantages over earlier quantum-transport proposals: Firstly, the required correlation functions can be obtained without time-resolved measurements. Secondly, the geometry of an interferometer allows one to construct the correlation functions from ideal negative measurements, which addresses the noninvasiveness requirement of the Leggett-Garg inequality. We discuss two concrete realizations of these ideas: the first in quantum Hall edge-channels, the second in a double quantum dot interferometer. DOI: 10.1103/PhysRevB.86.235447 PACS number(s): 03.65.Ud, 73.23.-b, 03.65.Ta, 42.50.Lc

【 授权许可】

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