Superfluidity of Bose—Einstein condensates in ultracold atomic gases
*
Zhu Qi-Zhong
a)
, Wu Biao
a),
b),
c)†
Elementary excitations of a BEC flow with the SOC. (a) k = 1; (b) k = 3; (c) k = 4. C
1
= 10, C
2
= 4, and γ = 1.