Detecting the Majorana fermion surface state of He3-B through spin relaxation

Suk Bum Chung, Shou Cheng Zhang

Research output: Contribution to journalArticlepeer-review

145 Scopus citations

Abstract

The Majorana fermion, which can be useful for topological quantum computation, has eluded detection. He3-B, recently shown to be a time-reversal invariant topological superfluid, has a gapless Majorana fermion surface state. We show here that an electron spin relaxation experiment can detect this surface state-its Majorana nature through the Zeeman field direction dependence of the relaxation time 1/T1 sin 2θ, where θ is the angle between the field and the surface normal. We propose an experimental setup where an electron inside a nanobubble is injected below the He3 liquid surface.

Original languageEnglish
Article number235301
JournalPhysical Review Letters
Volume103
Issue number23
DOIs
StatePublished - 3 Dec 2009

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