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Full counting statistics of Majorana interferometers

Struebi, Gregory and Belzig, Wolfgang and Schmidt, Thomas L. and Bruder, Christoph. (2015) Full counting statistics of Majorana interferometers. Physica E: Low-dimensional Systems and Nanostructures, 74. pp. 489-495.

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Official URL: http://edoc.unibas.ch/40034/

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Abstract

We study the full counting statistics of interferometers for chiral Majorana fermions with two incoming and two outgoing Dirac fermion channels. In the absence of interactions, the FCS can be obtained from the 4 x 4 scattering matrix S that relates the outgoing Dirac fermions to the incoming Dirac fermions. After presenting explicit expressions for the higher-order current correlations for a modified Hanbury Brown-Twiss interferometer, we note that the cumulant-generating function can be interpreted such that unit-charge transfer processes correspond to two independent half-charge transfer processes, or alternatively, to two independent electron-hole conversion processes. By a combination of analytical and numerical approaches, we verify that this factorization property holds for a general 5014) scattering matrix, i.e. for a general interferometer geometry. (C) 2015 Elsevier B.V. All rights reserved.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik (Bruder)
UniBasel Contributors:Bruder, Christoph and Schmidt, Thomas L.
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Elsevier B.V.
ISSN:1386-9477
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:30 Jun 2016 11:00
Deposited On:02 May 2016 10:50

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