On Bose-Einstein condensation in one-dimensional lattices of delta functions
MODERN PHYSICS LETTERS A(2020)
摘要
We investigate Bose-Einstein condensation of a gas of non-interacting Bose particles moving in the background of a periodic lattice of delta functions. In the one-dimensional case, where one has no condensation in the free case, we showed that this property persist also in the presence of the lattice. In addition we formulated some conditions on the spectral functions which would allow for condensation.
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关键词
Quantum vacuum,Casimir effect (theory),periodic potential,Bose-Einstein condensation
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