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Cluster Bose Metals | | Tao Ying
; Marcello Dalmonte
; Peter Zoller
; Guido Pupillo
; | | Date: |
14 Jun 2016 | | Abstract: | Quantum phases of matter are usually characterised by broken symmetries.
Identifying physical mechanisms and microscopic Hamiltonians that elude this
paradigm is one of the key present challenges in many-body physics. Here, we
use quantum Monte-Carlo simulations to show that a Bose metal phase, breaking
no symmetries, is realized in simple Hubbard models for bosonic particles on a
square lattice complemented by soft-shoulder interactions. The enabling
mechanism is provided by cluster formation in the corresponding classical
tiling problem. The Bose metal is separated from a superfluid glass by a
continuous transition showing non-classical exponents and winding numbers
consistent with deconfined quantum criticality. The identification of such
cluster mechanism paves the way to the realization of exotic quantum liquids in
both natural and synthetic quantum matter that harbors cluster formation. | | Source: | arXiv, 1606.4267 | | Services: | Forum | Review | PDF | Favorites | |
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