Bimodal momentum distribution of the high-density supersolid state

Takahiro Ohgoe*, Takafumi Suzuki, Naoki Kawashima

*この研究の対応する著者

研究成果: Article査読

抄録

By performing exact quantum Monte Carlo simulations, we study the momentum distribution of the supersolid state in the two-dimensional extended Bose- Hubbard model with the nearest-neighbor repulsion. For strong nearest-neighbor repulsions, the supersolid state is stable in a broad region up to large hopping amplitudes and high particle densities. In the supersolid state, the momentum distribution shows a bimodal structure with two peaks related to the superfluidity and solidity respectively. By our calculations, we show that the bimodal structure becomes clearer as the chemical potential (or the particle density) is increased.

本文言語English
ページ(範囲)309-314
ページ数6
ジャーナルJournal of Low Temperature Physics
171
3-4
DOI
出版ステータスPublished - 2013 1月 1
外部発表はい

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 材料科学(全般)
  • 凝縮系物理学

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