Schulz-Baldes H (2013)
Publication Type: Journal article, Original article
Publication year: 2013
Publisher: Springer Verlag (Germany)
Book Volume: 324
Pages Range: 589-600
URI: http://de.arxiv.org/abs/1207.2480
DOI: 10.1007/s00220-013-1814-y
For a disordered two-dimensional model of a topological insulator (such as a Kane-Mele model with disordered potential) with small coupling of spin invariance and time-reversal symmetry breaking terms (such as a Rashba spin-orbit coupling and a Zeeman term), it is proved that the spin edge currents persist provided there is a spectral gap and the spin Chern numbers are well-defined and non-trivial. These are sufficient conditions for being in the quantum spin Hall phase. The result materializes the general philosophy that topological insulators are topologically non-trivial bulk systems with persistent edge or surface currents. © 2013 Springer-Verlag Berlin Heidelberg.
APA:
Schulz-Baldes, H. (2013). Persistence of spin edge currents in disordered quantum spin Hall systems. Communications in Mathematical Physics, 324, 589-600. https://dx.doi.org/10.1007/s00220-013-1814-y
MLA:
Schulz-Baldes, Hermann. "Persistence of spin edge currents in disordered quantum spin Hall systems." Communications in Mathematical Physics 324 (2013): 589-600.
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