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Phase diagram of the half-filled one-dimensional t-V-V' model
Tapan Mishra, Juan Carrasquilla, Marcos Rigol
We study the phase diagram of spinless fermions with nearest and next-nearest-neighbor interactions in one dimension utilizing the (finite-size) density-matrix renormalization grou…
Expansion of Bose-Hubbard Mott insulators in optical lattices
Mark Jreissaty, Juan Carrasquilla, F. Alexander Wolf +1
We study the expansion of bosonic Mott insulators in the presence of an optical lattice after switching off a confining potential. We use the Gutzwiller mean-field approximation an…
Bose-glass, superfluid, and rung-Mott phases of hard-core bosons in disordered two-leg ladders
Juan Carrasquilla, Federico Becca, Michele Fabrizio
By means of Monte Carlo techniques, we study the role of disorder on a system of hard-core bosons in a two-leg ladder with both intra-chain () and inter-chain () hoppi…