G. E. Volovik, “Fermion zero modes at the boundary of superfluid <nobr>$^3$</nobr>He-B”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2009, Volume 90, Issue 5,Pages <nobr>440

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CONDENSED MATTER

Fermion zero modes at the boundary of superfluid $^3$He-B

G. E. Volovik^ab

^a Landau Institute for Theoretical Physics RAS
^b Low Temperature Laboratory, Helsinki University of Technology, FIN-02015 HUT, Finland

Abstract: Superfluid $^3$He-B belongs to the important special class of time-reversal invariant topological superfluids. It has Majorana fermions as edge states on the surface of bulk $^3$He-B. On the rough wall these fermion zero modes have finite density of states at $E=0$. It is possible that Lancaster experiments with a wire vibrating in $^3$He-B have already probed Majorana fermions living on the surface of the wire.

PACS: 04.50.-h, 67.30.Hp

Received: 03.08.2009

Language: English