分数维稀无自旋费米子的基态性质
Ground-state properties of dilute spinless fermions in fractional dimensions
摘要:
我们分析了具有短程两体相互作用的无自旋低维费米子的最简单伽利略不变模型的零温普适性质。特别是,它表明,经过适当的重正化的耦合常数,即使是稀系统具有丰富的相图,其中包括超流态和亚稳的“上支”行为。
英文摘要:
We analyze zero-temperature universal properties of the simplest Galilean-invariant model of spinless low-dimensional fermions with short-range two-body interactions. In particular, it is shown that after proper renormalization of the coupling constant, even the dilute system possesses rich phase diagram that includes the superfluid state and the metastable `upper branch' behavior.
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