Robinson, Neil J., Altland, Alexander, Egger, Reinhold ORCID: 0000-0001-5451-1883, Gergs, Niklas M., Li, Wei, Schuricht, Dirk ORCID: 0000-0002-5255-780X, Tsvelik, Alexei M., Weichselbaum, Andreas ORCID: 0000-0002-5832-3908 and Konik, Robert M. (2019). Nontopological Majorana Zero Modes in Inhomogeneous Spin Ladders. Phys. Rev. Lett., 122 (2). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114

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Abstract

We show that the coupling of homogeneous Heisenberg spin-1/2 ladders in different phases leads to the formation of interfacial zero energy Majorana bound states. Unlike Majorana bound states at the interfaces of topological quantum wires, these states are void of topological protection and generally susceptible to local perturbations of the host spin system. However, a key message of our Letter is that, in practice, they show a high degree of resilience over wide parameter ranges which may make them interesting candidates for applications.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Robinson, Neil J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Altland, AlexanderUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Egger, ReinholdUNSPECIFIEDorcid.org/0000-0001-5451-1883UNSPECIFIED
Gergs, Niklas M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Li, WeiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schuricht, DirkUNSPECIFIEDorcid.org/0000-0002-5255-780XUNSPECIFIED
Tsvelik, Alexei M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Weichselbaum, AndreasUNSPECIFIEDorcid.org/0000-0002-5832-3908UNSPECIFIED
Konik, Robert M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-159219
DOI: 10.1103/PhysRevLett.122.027201
Journal or Publication Title: Phys. Rev. Lett.
Volume: 122
Number: 2
Date: 2019
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 1079-7114
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
SINE-GORDON MODEL; NONLINEAR INTEGRAL-EQUATION; BOUNDARY STATES; FERMIONS; SPECTRUM; CHARGE; SPACE; GAPMultiple languages
Physics, MultidisciplinaryMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/15921

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