Detecting the Majorana Fermion Surface State of 3He-B through Spin Relaxation

被引：146

作者：

Chung, Suk Bum ^{[1
]}

Zhang, Shou-Cheng ^{[1
]}

机构：

[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 23期

关键词：

P-WAVE SUPERCONDUCTORS; SINGLE DIRAC CONE; TOPOLOGICAL INSULATORS; SUPERFLUID HE-3-B; LIQUID-HE-3; BI2TE3; PHASE;

D O I：

10.1103/PhysRevLett.103.235301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Majorana fermion, which can be useful for topological quantum computation, has eluded detection. He-3-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/T-1 proportional to sin(2)theta, where theta 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 He-3 liquid surface.

引用

页数：4

共 36 条

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Abragam A., 1961, The principles of nuclear magnetism

[2] Observation of surface Andreev bound states of superfluid 3He by transverse acoustic impedance measurements -: art. no. 075301 [J].