Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2010-03-31
Phys. Rev. B 82, 220501(R) (2010)
Physics
Condensed Matter
Strongly Correlated Electrons
5 pages, 5 figures, final version. More information at http://www.physik.uni-kl.de/eggert/papers/index.html
Scientific paper
10.1103/PhysRevB.82.220501
We study the effect of impurities in a supersolid phase in comparison to the behavior in the solid and superfluid phases. A supersolid phase has been established for interacting hardcore bosons on a triangular lattice which may be realizable by ultracold atomic gases. Static vacancies are considered in this model which always lower the magnitude of the order parameter in the solid or superfluid phases. In the supersolid phase, however, the impurities directly affect both order parameters simultaneously and thereby reveal an interesting interplay between them. In particular the solid order may be enhanced at the cost of a strong reduction of the superfluidity, which shows that the two order parameters cannot be in a simple superposition. We also observe an unusual impurity pinning effect in the solid ordered phase, which results in two distinct states separated by a first-order transition.
Eggert Sebastian
Wen Yu Chuan
Zhang Xue-Feng
No associations
LandOfFree
Static impurities in a supersolid of interacting hard-core bosons on a triangular lattice does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Static impurities in a supersolid of interacting hard-core bosons on a triangular lattice, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Static impurities in a supersolid of interacting hard-core bosons on a triangular lattice will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-35128