Leggett-Garg inequalities for the statistics of electron transport
arXiv:1203.4922 · doi:10.1103/PhysRevB.86.085418
Abstract
We derive a set of Leggett-Garg inequalities (temporal Bell's inequalities) for the moment generating function of charge transferred through a conductor. Violation of these inequalities demonstrates the absence of a macroscopic-real description of the transport process. We show how these inequalities can be violated by quantum-mechanical systems and consider transport through normal and superconducting single-electron transistors as examples.
5 pages; 3 figures
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