Valence Bond Solids and Their Quantum Melting in Hard-Core Bosons on the Kagome Lattice

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dc.creatorIsakov, S. V.
dc.creatorWessel, S.
dc.creatorMelko, R. G.
dc.creatorSengupta, K.
dc.creatorKim, Yong Baek
dc.date2006-02-17
dc.date2006-07-28
dc.date.accessioned2026-07-07T07:01:47Z
dc.date.available2026-07-07T07:01:47Z
dc.descriptionUsing large scale quantum Monte Carlo simulations and dual vortex theory we analyze the ground state phase diagram of hard-core bosons on the kagome lattice with nearest neighbor repulsion. In contrast to the case of a triangular lattice, no supersolid emerges for strong interactions. While a uniform superfluid prevails at half-filling, two novel solid phases emerge at densities $ρ=1/3$ and $ρ=2/3$. These solids exhibit an only partial ordering of the bosonic density, allowing for local resonances on a subset of hexagons of the kagome lattice. We provide evidence for a weakly first-order phase transition at the quantum melting point between these solid phases and the superfluid.
dc.description4 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0602430
dc.identifierhttp://arxiv.org/abs/cond-mat/0602430
dc.identifierPhys. Rev. Lett. 97, 147202 (2006)
dc.identifierdoi:10.1103/PhysRevLett.97.147202
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/108386
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleValence Bond Solids and Their Quantum Melting in Hard-Core Bosons on the Kagome Lattice
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