Dipolar bosons in triangular optical lattices: Quantum phase transitions and anomalous hysteresis

Daisuke Yamamoto*, Ippei Danshita, Carlos A R Sá De Melo

*この研究の対応する著者

研究成果: Article査読

56 被引用数 (Scopus)

抄録

We study phase transitions and hysteresis in a system of dipolar bosons loaded into triangular optical lattices at zero temperature. We find that the quantum melting transition from supersolid to superfluid phase is first order, in contrast with the previous report. We also find that due to strong quantum fluctuations the supersolid (or solid)-superfluid transition can exhibit an anomalous hysteretic behavior, in which the curve of density versus chemical potential does not form a standard loop structure. Furthermore, we show that the transition occurs unidirectionally along the anomalous hysteresis curve.

本文言語English
論文番号021601
ジャーナルPhysical Review A - Atomic, Molecular, and Optical Physics
85
2
DOI
出版ステータスPublished - 2012 2月 3

ASJC Scopus subject areas

  • 原子分子物理学および光学

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