122 citations · 218 across the 8 of their papers we have counts for
8 papers
Efficient Cluster Algorithm for CP(N-1) Models
B. B Beard, M. Pepe, S. Riederer +1
Despite several attempts, no efficient cluster algorithm has been constructed for CP(N-1) models in the standard Wilson formulation of lattice field theory. In fact, there is a no-…
Study of the 2-d CP(N-1) models at θ=0 and π
B. B. Beard, M. Pepe, S. Riederer +1
We present numerical results for 2-d CP(N-1) models at θ=0 and πobtained in the D-theory formulation. In this formulation we construct an efficient cluster algorithm and we show nu…
Study of CP(N-1) θ-Vacua by Cluster-Simulation of SU(N) Quantum Spin Ladders
B. B. Beard, M. Pepe, S. Riederer +1
D-theory provides an alternative lattice regularization of the (1+1)-d CP(N-1) quantum field theory. In this formulation the continuous classical CP(N-1) fields emerge from the dim…
Quantum 2D Heisenberg antiferromagnet: bridging the gap between field-theoretical and semiclassical approaches
Bernard B. Beard, Alessandro Cuccoli, Ruggero Vaia +1
The field-theoretical result for the low- behaviour of the correlation length of the quantum Heisenberg antiferromagnet on the square lattice was recently improved by Hasenfratz…
Reconciling the correlation length for high-spin Heisenberg antiferromagnets
B. B. Beard, V. Chudnovsky, P. Keller-Marxer
We present numerical results for the antiferromagnetic Heisenberg model (AFHM) that definitively confirm that chiral perturbation theory, corrected for cutoff effects in the AFHM,…
D-Theory: Field Theory via Dimensional Reduction of Discrete Variables
B. B. Beard, R. C. Brower, S. Chandrasekharan +3
A new non-perturbative approach to quantum field theory --- D-theory --- is proposed, in which continuous classical fields are replaced by discrete quantized variables which underg…