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Title:
Baeriswyl based variational approach to the Bose-Hubbard model: is it supersolid or not?
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Abstract:
One of the intriguing results of low temperature physics in the twentieth century was the discovery of superfluidity, a highly coherent quantum phase of matter exhibiting frictionless flow through cavities. Even more counterintuitive was the suggestion that this can occur in a phase of matter in which long-range crystalline order is maintained. In 2004 Kim and Chan [1], by measuring the rotational inertia of a solid sample in torsional oscillator experiment raised the possibility of a supersolid phase in helium II. The results of
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