Majorana Fermions: Direct Observation in 3He

In this letter we report the first direct observation of gap-less Majorana QPs which appear as Andreev bound states on the surface of superfluid \(^3\)He-B. We made the precise measurements of superfluid 3He-B heat capacity at the limit of extremely low temperatures. We have separated the heat capac...

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Bibliographic Details
Published in:arXiv.org 2015-06
Main Authors: Bunkov, Yury, Gazizulin, Rasul
Format: Article
Language:English
Subjects:
Bolometers
Fermions
Fluids
Specific heat
Superfluidity
Temperature dependence
Online Access:Get full text
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Summary:In this letter we report the first direct observation of gap-less Majorana QPs which appear as Andreev bound states on the surface of superfluid \(^3\)He-B. We made the precise measurements of superfluid 3He-B heat capacity at the limit of extremely low temperatures. We have separated the heat capacity of bulk Bogolyubov QPs and the surface Majorana QPs by its different temperature dependence. We have found that at 0.11 mK the Majorana fermions constitute half of the bolometer heat capacity under the conditions of our experiments.
ISSN:2331-8422