Universität zu Köln

Zazunov, Alex, Altland, Alexander ORCID: 0000-0002-2991-4805 and Egger, Reinhold ORCID: 0000-0001-5451-1883 (2014). Transport properties of the Coulomb-Majorana junction. New J. Phys., 16. BRISTOL: IOP PUBLISHING LTD. ISSN 1367-2630

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Abstract

We provide a comprehensive theoretical description of low-energy quantum transport for a Coulomb-Majorana junction, where several helical Luttinger liquid nanowires are coupled to a joint mesoscopic superconductor with finite charging energy. Including the Majorana bound states formed near the ends of superconducting wire parts, we derive and analyze the Keldysh phase action describing non-equilibrium charge transport properties of the junction. The low-energy physics corresponds to a two-channel Kondo model with symmetry group SO(M), where M is the number of leads connected to the superconductor. Transport observables, such as the conductance tensor or current noise correlations, display non-trivial temperature or voltage dependences reflecting non-Fermi liquid behavior.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Zazunov, Alex UNSPECIFIED UNSPECIFIED UNSPECIFIED Altland, Alexander UNSPECIFIED orcid.org/0000-0002-2991-4805 UNSPECIFIED Egger, Reinhold UNSPECIFIED orcid.org/0000-0001-5451-1883 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-448659
DOI:	10.1088/1367-2630/16/1/015010
Journal or Publication Title:	New J. Phys.
Volume:	16
Date:	2014
Publisher:	IOP PUBLISHING LTD
Place of Publication:	BRISTOL
ISSN:	1367-2630
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Physics > Institute for Theoretical Physics
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language CONDUCTANCE; SUPERCONDUCTOR; FERMIONS Multiple languages Physics, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/44865