400 citations · 2.8k across the 41 of their papers we have counts for
8 papers · 1 filter
A numerical study of the Random Dimerized XX spin-1/2 chain
P. Henelius, S. M. Girvin
The effects of randomness and dimerization on the spin-1/2 XX chain are studied by a mapping to free fermions. Results are presented for the transverse and longitudinal components…
Dynamical universality classes of the superconducting phase transition
Jack Lidmar, Mats Wallin, Carsten Wengel +2
We present a finite temperature Monte Carlo study of the XY-model in the vortex representation, and study its dynamical critical behavior in two limits. The first neglects magnetic…
The role of winding numbers in quantum Monte Carlo simulations
Patrik Henelius, S. M. Girvin, Anders W. Sandvik
We discuss the effects of fixing the winding number in quantum Monte Carlo simulations. We present a simple geometrical argument as well as strong numerical evidence that one can o…
Two-Dimensional Quantum Ferromagnets
Carsten Timm, Patrik Henelius, Anders W. Sandvik +1
We present 1/N Schwinger boson and quantum Monte Carlo calculations of the magnetization and NMR relaxation rate for the two-dimensional ferromagnetic Heisenberg model representing…
Anomalous Charge Dynamics in the Superconducting State of Underdoped Cuprates
A. J. Millis, S. M. Grivin, L. B. Ioffe +1
We present fermi liquid expressions for the low temperature behavior of the superfluid stiffness, explain why they differ from those suggested recently by Lee and Wen, and discuss…
A critical comparison of classical field theory and microscopic wavefunctions for skyrmions in quantum Hall ferromagnets
M. Abolfath, J. J. Palacios, H. A. Fertig +2
We report on a study of the classical field theory description of charged skyrmions in quantum Hall ferromagnets. The appropriate field theory is a non-linear model generalized…