313 citations · 2k across the 83 of their papers we have counts for
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hep-ph2000★ 1 cited
Quantum Phase Transitions and the Extended Coupled Cluster Method
N. E. Ligterink, N. R. Walet, R. F. Bishop
We discuss the application of an extended version of the coupled cluster method to systems exhibiting a quantum phase transition. We use the lattice O(4) non-linear sigma model in…
hep-lat2000★ 33 cited
Towards a Many-Body Treatment of Hamiltonian Lattice SU(N) Gauge Theory
N. E. Ligterink, N. R. Walet, R. F. Bishop
We develop a consistent approach to Hamiltonian lattice gauge theory, using the maximal-tree gauge. The various constraints are discussed and implemented. An independent and comple…