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Mott phases and superfluid-insulator transition of dipolar spin-three bosons in an optical lattice: implications for Cr atoms
Jean-Sebastien Bernier, K. Sengupta, Yong Baek Kim
We study the Mott phases and superfluid-insulator transition of spin-three bosons in an optical lattice with an anisotropic two dimensional optical trap. We chart out the phase dia…
Oscillatory vortex interaction in a gapless fermion superfluid with spin population imbalance
Vladimir M. Stojanovic, W. Vincent Liu, Yong Baek Kim
Using effective field theory approach we study a homogeneous superfluid state with a single (gapless) Fermi surface, recently suggested as a possible phase for an ultracold Fermi g…
Classical antiferromagnet on a hyperkagome lattice
John M. Hopkinson, Sergei V. Isakov, Hae-Young Kee +1
Motivated by recent experiments on Na_4Ir_3O_8 [Y. Okamoto, M. Nohara, H. Aruga-Katori, and H. Takagi, arXiv:0705.2821 (unpublished)], we study the classical antiferromagnet on a f…
Spin liquid phase in a quantum magnet on the kagome lattice
S. V. Isakov, Yong Baek Kim, A. Paramekanti
We study a model of hard-core bosons with short-range repulsive interactions at half-filling on the kagome lattice. Using quantum Monte Carlo (QMC) numerics, we find that this mode…
Topological degeneracy of non-Abelian states for dummies
Masaki Oshikawa, Yong Baek Kim, Kirill Shtengel +2
We present a physical construction of degenerate groundstates of the Moore-Read Pfaffian states, which exhibits non-Abelian statistics, on general Riemann surface with genus g. The…
Nonequilibrium quantum criticality in open electronic systems
Aditi Mitra, So Takei, Yong Baek Kim +1
A theory is presented of quantum criticality in open (coupled to reservoirs) itinerant electron magnets, with nonequilibrium drive provided by current flow across the system. Both…
Nematic domains and resistivity in an itinerant metamagnet coupled to a lattice
Hyeonjin Doh, Yong Baek Kim, K. H. Ahn
The nature of the emergent phase near a putative quantum critical point in the bilayer ruthenate SrRuO has been a recent subject of intensive research. It has been sugg…
Valence Bond Solids and Their Quantum Melting in Hard-Core Bosons on the Kagome Lattice
S. V. Isakov, S. Wessel, R. G. Melko +2
Using 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 r…