论文标题
Bose-Einstein凝结和超氧
Bose-Einstein Condensation and Supersolids
论文作者
论文摘要
我们考虑在外部电势中相互作用的玻璃颗粒。结果表明，在有限温度下，在没有外部电势的情况下，在有限的温度下，在有限的温度下，在三维（3D）上描述了超固体（3D）的有限温度。然而，对于2D，只要玻色子之间的相互作用是非本地的，并且无限的远距离存在，则存在有限温度的自组织超固体。有趣的是，在没有后一种电势并存在晶格电位的情况下，没有Bose-Einstein冷凝物，因此在这种情况下，在有限温度下不可能使用2D超固醇。我们还提出了对有限温度有效的冷凝物波函数的正确BLOCH形式，该功能可以用作正确的试验波函数。
We consider interacting Bose particles in an external potential. It is shown that a Bose-Einstein condensate is possible at finite temperatures that describes a supersolid in three dimensions (3D) for a wide range of potentials in the absence of an external potential. However, for 2D, a self-organized supersolid exists for finite temperatures provided the interaction between bosons is nonlocal and of infinitely long-range. It is interesting that in the absence of the latter type of potential and in the presence of a lattice potential, there is no Bose-Einstein condensate and so in such a case, a 2D supersolid is not possible at finite temperatures. We also propose the correct Bloch form of the condensate wave function valid for finite temperatures, which may be used as the correct trial wave function.
