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)

The energy spectrum with the edges of 2D Fermi gases with pure spin-singlet pairing. The unit of energy is set as t . The parameters are t ′ = 0.3, v _R = 0.5, μ = −0.5, Δ _s = 0.6, Δ _p = 0; (a) H _z = 1; (b) H _z = 2.5; (c) H _z = 4; (d) H _z = 6.