Topological phase transitions driven by next-nearest-neighbor hopping in noncentrosymmetric cold Fermi gases<xref ref-type="fn" rid="cpb141862fn1">*</xref>

Topological phase transitions driven by next-nearest-neighbor hopping in noncentrosymmetric cold Fermi gases*

Wang Rui^a),^b)†, Zhang Cun-Xi^a), Ji Qing-Shan^a)

(a)–(c) Topological phase diagram and TKNN numbers in different regions. The unit of energy is set as t , the other parameters used here are v _R = 0.5, Δ _s = 0.6, and Δ _p = 0.8. (d) The height of the topological quantum phase δ versus t ′, where μ = −0.5.