2004年,E.Kim等在一个固态氦的扭摆实验中发现,当温度降到约100mK以下时,扭摆的震荡周期突然减小.这意味着部分固态氦与大块晶格的运动退耦合,导致了转动惯量的突降.目前,学术界对上述现象的共识是,发生了超固体(supersolid)相变.3年以来,尽管在理论和实验两方面均有明显进展, In 2004, E. Kim, et al., Found in a torsion experiment of solid helium that the oscillation period of the torsion suddenly decreases when the temperature drops below about 100 mK, which means that part of the solid helium is decoupled from the motion of the bulk lattice, Leading to a sudden drop in moment of inertia .At present, the consensus of the academic community is that there has been a supersolid phase transition. Although three years of progress have been made both theoretically and experimentally,