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Topology driven quantum phase transitions in time-reversal invariant anyonic quantum liquids
Charlotte Gils, Simon Trebst, Alexei Kitaev +3
Indistinguishable particles in two dimensions can be characterized by anyonic quantum statistics more general than those of bosons or fermions. Such anyons emerge as quasiparticles…
Collective States of Interacting Anyons, Edge States, and the Nucleation of Topological Liquids
Charlotte Gils, Eddy Ardonne, Simon Trebst +3
Quantum mechanical systems, whose degrees of freedom are so-called su(2)_k anyons, form a bridge between ordinary SU(2) spin systems and systems of interacting non-Abelian anyons.…
Mechanisms for Spin-Supersolidity in S=1/2 Spin-Dimer Antiferromagnets
J. -D. Picon, A. F. Albuquerque, K. P. Schmidt +3
Using perturbative expansions and the contractor renormalization (CORE) algorithm, we obtain effective hard-core bosonic Hamiltonians describing the low-energy physics of s…
Quantum Phase Transition in a Heisenberg Antiferromagnet on a Square Lattice with Strong Plaquette Interactions
A. Fabricio Albuquerque, Matthias Troyer, Jaan Oitmaa
We present numerical results for an Heisenberg antiferromagnet on a inhomogeneous square lattice with tunable interaction between spins belonging to different plaquettes. E…
Spin freezing transition and non-Fermi-liquid self-energy in a 3-orbital model
Philipp Werner, Emanuel Gull, Matthias Troyer +1
A single-site dynamical mean field study of a three band model with the rotationally invariant interactions appropriate to the t_2g levels of a transition metal oxide reveals a qua…
Critical Temperature Curve in the BEC-BCS Crossover
Evgeni Burovski, Evgeny Kozik, Nikolay Prokof'ev +2
The strongly-correlated regime of the BCS-BEC crossover can be realized by diluting a system of two-component fermions with a short-range attractive interaction. We investigate thi…