3 papers
cond-mat.mes-hall2013
Comment on "Time reversal polarization and a Z2 adiabatic spin pump"
Yi-Dong Wu
In Ref 1[Phy. Rev. B 74, 195312(2006)] Fu and Kane propose a spin pump for onedimensional (1D) insulating Hamiltonians. They claim that this spin pump is a Z2 pump because For an i…
cond-mat.mes-hall2013
On the single-electron theory of quantum spin Hall effect in two dimensional topological insulators
Yi-Dong Wu
Recently we wrote a paper on the theory of the quantum spin Hall effect(QSHE) in two dimensional(2D) topological insulators(TIs)1 which have been considered as do not add much new…
cond-mat.mes-hall2012
Chern pump: a bridge between integer quantum Hall effect and quantum spin Hall effect
Yi-Dong Wu
We propose a electron-pumping mechanism called Chern pump to explain the integer quantum Hall effect(IQHE) in the Chern insulator. By using the parallel transport gauge in the hybr…