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|Title: ||Variational wave-function study of the triangular lattice supersolid|
|Authors: ||SEN, A|
|Issue Date: ||2008|
|Publisher: ||AMER PHYSICAL SOC|
|Citation: ||PHYSICAL REVIEW LETTERS, 100(14), -|
|Abstract: ||We present a variational wave function which explains the behavior of the supersolid state formed by hard-core bosons on the triangular lattice. The wave function is a linear superposition of only and all configurations minimizing the repulsion between the bosons (which it thus implements as a hard constraint). Its properties can be evaluated exactly-in particular, the variational minimization of the energy yields (i) the surprising and initially controversial spontaneous density deviation from half-filling (ii) a quantitatively accurate estimate of the corresponding density wave (solid) order parameter.|
|Appears in Collections:||Article|
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