Crystalline Symmetry-Protected Majorana Mode in Number-Conserving Dirac Semimetal Nanowires

Physical Review Letters
Rui-Xing Zhang, Chao-Xing Liu

Abstract

One of the cornerstones for topological quantum computations is the Majorana zero mode, which has been intensively searched in fractional quantum Hall systems and topological superconductors. Several recent works suggest that such an exotic mode can also exist in a one-dimensional (1D) interacting double-wire setup even without long-range superconductivity. A notable instability in these proposals comes from interchannel single-particle tunneling that spoils the topological ground state degeneracy. Here we show that a 1D Dirac semimetal (DSM) nanowire is an ideal number-conserving platform to realize such Majorana physics. By inserting magnetic flux, a DSM nanowire is driven into a 1D crystalline-symmetry-protected semimetallic phase. Interaction enables the emergence of boundary Majorana zero modes, which is robust as a result of crystalline symmetry protection. We also explore several experimental consequences of Majorana signals.

References

Feb 15, 2001·Physical Review Letters·D A Ivanov
Jan 22, 2002·Physical Review Letters·C L KaneT C Lubensky
Aug 8, 2009·Physical Review Letters·Amit AgarwalDiptiman Sen
Apr 7, 2010·Physical Review Letters·K T LawT K Ng
Jan 15, 2011·Physical Review Letters·Yuval OregFelix von Oppen
Jul 14, 2012·Reports on Progress in Physics·Jason Alicea
Jan 10, 2013·Nature Communications·David J ClarkeKirill Shtengel
Nov 12, 2013·Physical Review Letters·Christina V KrausP Zoller
Jul 6, 2014·Physical Review Letters·Jelena Klinovaja, Daniel Loss
Jan 24, 2015·Physical Review Letters·Gerardo OrtizCarlo Beenakker
Nov 10, 2015·Physical Review Letters·Fernando IeminiSebastian Diehl
Feb 24, 2016·Nature Communications·Li-Xian WangZhi-Min Liao
Jun 6, 2017·Physical Review Letters·F IeminiM Dalmonte

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