Testing for Majorana Zero Modes in a Px+iPy Superconductor at High Temperature by Tunneling Spectroscopy

Directly observing a zero energy Majorana state in the vortex core of a chiral superconductor by tunneling spectroscopy requires energy resolution better than the spacing between core states $Δ^2/eF$. We show that nevertheless, its existence can be decisively tested by comparing the temperature broa...

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Bibliographic Details
Main Authors: Kraus, Yaacov E., Auerbach, Assa, Fertig, H. A., Simon, Steven H.
Format: Text
Language:unknown
Published: arXiv 2008
Subjects:
Strongly Correlated Electrons cond-mat.str-el
Superconductivity cond-mat.supr-con
FOS Physical sciences
IPY
Online Access:https://dx.doi.org/10.48550/arxiv.0811.2557
https://arxiv.org/abs/0811.2557
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Summary:Directly observing a zero energy Majorana state in the vortex core of a chiral superconductor by tunneling spectroscopy requires energy resolution better than the spacing between core states $Δ^2/eF$. We show that nevertheless, its existence can be decisively tested by comparing the temperature broadened tunneling conductance of a vortex with that of an antivortex even at temperatures $T >> Δ^2/eF$. : 5 pages, 4 figures

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