Nash Equilibrium in the Quantum Battle of Sexes Game
  We investigate Nash Equilibrium in the quantum Battle of Sexes Game. We find the game has infinite Nash Equilibria and all of them leads to the asymmetry result. We also show that there is no unique but infinite Nash Equilibrium in it if we use the quantizing scheme proposed by Eisert et al and the two players are allowed to adopt any unitary operator as his/her strategies. 
Jiangfeng Du, Xiaodong Xu, Hui Li, Xianyi Zhou, and Rongdian Han   (University of Science and Technology of China)