Persistent supersolid phase of hard-core bosons on the triangular lattice

We study hard-core bosons with unfrustrated hopping (t) and nearest neighbor repulsion (U) (spin S=1/2 XXZ model) on the triangular lattice. At half filling, the system undergoes a zero temperature (T) quantum phase transition from a superfluid phase at small U to a supersolid at Uc approximately 4....

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Veröffentlicht in:	Physical review letters 2005-09, Vol.95 (12), p.127206.1-127206.4, Article 127206
Hauptverfasser:	HEIDARIAN, Dariush, DAMLE, Kedar
Format:	Artikel
Sprache:	eng
Schlagworte:	Classical and quantum physics: mechanics and fields Exact sciences and technology Matter waves Physics
Online-Zugang:	Volltext
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