Spin nematic correlations in bilinear-biquadratic S=1 spin chains (2006)
Laeuchli, Andreas, Schmid, Guido, Trebst, Simon
We present an extensive numerical study of spin quadrupolar correlations in single and coupled bilinear-biquadratic spin one chains, using several methods such as Exact Diagonalization, Density...
Supersolids versus phase separation in two-dimensional lattice bosons (2005)
Sengupta, Pinaki, Pryadko, Leonid P., Alet, Fabien, Troyer, Matthias, Schmid, Guido
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 interaction U along...
Supersolids versus phase separation in two-dimensional lattice bosons (2004)
Sengupta, Pinaki, Pryadko, Leonid P., Alet, Fabien, Troyer, Matthias, Schmid, Guido
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 interaction U along...
Supersolids versus phase separation in two-dimensional lattice bosons (2004)
Sengupta, Pinaki, Pryadko, Leonid P., Alet, Fabien, Troyer, Matthias, Schmid, Guido
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 interaction U along...
Supersolids versus phase separation in two-dimensional lattice bosons (2004)
Sengupta, Pinaki, Pryadko, Leonid P., Alet, Fabien, Troyer, Matthias, Schmid, Guido
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 interaction U along...
On the Melting of Bosonic Stripes (2003)
Schmid, Guido, Troyer, Matthias
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 hard-core boson...
Melting of Stripes in a Two-Dimensional Hard-Core Boson Hubbard Model (2003)
Schmid, Guido, Todo, Synge, Troyer, Matthias, Batrouni, G. George
Quantum phase transitions in the two-dimensional hardcore boson model (2002)
Hebert, Frederic, Batrouni, G. George, Scalettar, Richard, Schmid, Guido, Troyer, Matthias, Dorneich, Ansgar
We use two quantum Monte Carlo algorithms to map out the phase diagram of the two-dimensional hardcore boson Hubbard model with near (V1) and next near (V2) neighbor repulsion. At half filling we...
Finite-Temperature Phase Diagram of Hard-Core Bosons in Two Dimensions (2001)
Schmid, Guido, Todo, Synge, Troyer, Matthias, Dorneich, Ansgar
We determine the finite-temperature phase diagram of the square lattice hard-core boson Hubbard model with nearest neighbor repulsion using quantum Monte Carlo simulations. This model is equivalent...