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Article overview
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Competing structures in 2D-trapped dipolar gases | Barbara Gränz
; Sergey E. Korshunov
; Vadim B. Geshkenbein
; Gianni Blatter
; | Date: |
11 Feb 2015 | Abstract: | We study a system of dipolar molecules confined in a two-dimensional trap and
subject to an optical square lattice. The repulsive long-range dipolar
interaction $D/r^3$ favors an equilateral triangular arrangement of the
molecules, which competes against the square symmetry of the underlying optical
lattice with lattice constant $b$ and amplitude $V$. We find the minimal-energy
states at the commensurate density $n = 1/b^2$ and establish the complete
square-to-triangular transformation pathway of the lattice with decreasing $V$
involving period-doubled, solitonic, and distorted-triangular configurations. | Source: | arXiv, 1502.3214 | Services: | Forum | Review | PDF | Favorites |
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