39 citations · 152 across the 16 of their papers we have counts for
8 papers · 1 filter
Isotope effect on superconductivity in Josephson coupled stripes in underdoped cuprates
A. Rosengren, P. H. Lundow, A. V. Balatsky
Inelastic neutron scattering data for YBaCuO as well as for LaSrCuO indicate incommensurate neutron scattering peaks with incommensuration away from the point. $T_c(…
One-dimensional extended Bose-Hubbard model with a confining potential: a DMRG analysis
Laura Urba, Emil Lundh, Anders Rosengren
The extended Bose-Hubbard model in a quadratic trap potential is studied using a finite-size density-matrix renormalization group method (DMRG). We compute the boson density profil…
Exact ground states of extended t-J_{z} models on a square lattice
Zohar Nussinov, Anders Rosengren
We examine special extended spin S=1/2 fermionic and hard core bosonic t-J_{z} models and find exact ground states. Some of these models display an exponentially large degeneracy w…
Magnetism in the dilute Kondo lattice model
M. Gulacsi, I. P. McCulloch, A. Juozapavicius +1
The one dimensional dilute Kondo lattice model is investigated by means of bosonization for different dilution patterns of the array of impurity spins. The physical picture is very…
Reduction of the sign problem using the meron-cluster approach
Sara Bergkvist, Patrik Henelius, Anders Rosengren
The sign problem in quantum Monte Carlo calculations is analyzed using the meron-cluster solution. The concept of merons can be used to solve the sign problem for a limited class o…
Ground state of the random-bond spin-1 Heisenberg chain
Sara Bergkvist, Patrik Henelius, Anders Rosengren
Stochastic series expansion quantum Monte Carlo is used to study the ground state of the antiferromagnetic spin-1 Heisenberg chain with bond disorder. Typical spin- and string-corr…
Density matrix renormalization group analysis of the spin 1/2 XXZ chain in an XY symmetric random magnetic field
Laura Urba, Anders Rosengren
The spin 1/2 XXZ chain in a random magnetic field pointing in the Z direction is numerically studied using the Density Matrix Renormalization Group (DMRG) method. The phase diagram…
Phase Diagram of the 1D Kondo Lattice Model
I. P. McCulloch, M. Gulacsi, S. Caprara +1
We determine the boundary of the fully polarized ferromagnetic ground state in the one dimensional Kondo lattice model at partial conduction electron band filling by using a newly…