Can Short-Range Interactions Mediate a Bose Metal Phase in 2D?

Details Can Short-Range Interactions Mediate a Bose Metal Phase in 2D? Can Short-Range Interactions Mediate a Bose Metal Phase in 2D?

2001-09-14

arxiv.org/abs/cond-mat/0109269v1

Phys. Rev. B. vol. 65, 81101/1-3 (2002)

Physics

Condensed Matter

3 pages, 1 .eps file. SUbmitted to Phys. Rev. B

Scientific paper

10.1103/PhysRevB.65.081101

We show here based on a 1-loop scaling analysis that short-range interactions are strongly irrelevant perturbations near the insulator-superconductor (IST) quantum critical point. The lack of any proof that short-range interactions mediate physics which is present only in strong coupling leads us to conclude that short-range interactions are strictly irrelevant near the IST quantum critical point. Hence, we argue that no new physics, such as the formation of a uniform Bose metal phase can arise from an interplay between on-site and nearest-neighbour interactions.

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