科研之友
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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.
- 出版日期2009-12-4
