Tsvelik A M
Brookhaven National Laboratory, Upton, New York 11973-5000, USA.
Phys Rev Lett. 2014 Aug 8;113(6):066401. doi: 10.1103/PhysRevLett.113.066401. Epub 2014 Aug 6.
Parafermion zero energy modes are a vital element of fault-tolerant topological quantum computation. Although it is believed that such modes form on the border between topological and normal phases, this has been demonstrated only for Z(2) (Majorana) and Z(3) parafermions. I consider an integrable model of one-dimensional fermions where such a demonstration is possible for Z(N) parafermions with any N. The procedure is easily generalizable for more complicated symmetry groups.
准费米子零能模是容错拓扑量子计算的关键要素。尽管人们认为此类模式形成于拓扑相和正常相的边界，但这仅在Z(2)（马约拉纳）和Z(3)准费米子的情况下得到了证明。我考虑了一个一维费米子的可积模型，在该模型中对于任意N的Z(N)准费米子都有可能进行这样的证明。该过程很容易推广到更复杂的对称群。
