230 citations · 343 across the 3 of their papers we have counts for
5 papers
Supersolids versus phase separation in two-dimensional lattice bosons
Pinaki Sengupta, Leonid P. Pryadko, Fabien Alet +2
We study the nature of the ground state of the strongly-coupled two dimensional extended boson Hubbard model on a square lattice. We demonstrate that strong but finite on-site inte…
On the Melting of Bosonic Stripes
Guido Schmid, Matthias Troyer
We use quantum Monte Carlo simulations to determine the finite temperature phase diagram and to investigate the thermal and quantum melting of stripe phases in a two-dimensional ha…
Phase Diagram of a Spin Ladder with Cyclic Four Spin Exchange
A. Laeuchli, G. Schmid, M. Troyer
We present the phase diagram of the Heisenberg model on the two leg ladder with cyclic four spin exchange, determined by a combination of Exact Diagonalization and Density…
Analytical and numerical study of hardcore bosons in two dimensions
K. Bernardet, G. G. Batrouni, J. -L. Meunier +3
We study various properties of bosons in two dimensions interacting only via onsite hardcore repulsion. In particular, we use the lattice spin-wave approximation to calculate the g…
Nature of the quantum phase transitions in the two-dimensional hardcore boson model
F. Hebert, G. G. Batrouni, R. T. Scalettar +3
We use two Quantum Monte Carlo algorithms to map out the phase diagram of the two-dimensional hardcore boson Hubbard model with near () and next near () neighbor repulsio…