Additionally, the quantum anomalous Hall (QAH) effect, that is, the existence of a quantized Hall conductance with zero net magnetic field, also requires half-filling of the Haldane model17. As the QAH effect breaks time-reversal symmetry while the QSH effect does not, it is difficult for...
However, as far as I’m aware nobody has ever done it without assistance of a pole and a run up, so asking me would be pointless, ludicrous and would if punishment was handed out for failing bring the judge, their court and the rest of the legal system into disrepute. In effect it ...