15 citations · 18 across the 2 of their papers we have counts for
2 papers
hep-th2007★ 3 cited
Noncompact sigma-models: Large N expansion and thermodynamic limit
A. Duncan, M. Niedermaier, P. Weisz
Noncompact SO(1,N) sigma-models are studied in terms of their large N expansion in a lattice formulation in dimensions d \geq 2. Explicit results for the spin and current two-point…
hep-th2004★ 15 cited
Vacuum orbit and spontaneous symmetry breaking in hyperbolic sigma models
A. Duncan, M. Niedermaier, E. Seiler
We present a detailed study of quantized noncompact, nonlinear SO(1,N) sigma-models in arbitrary space-time dimensions D \geq 2, with the focus on issues of spontaneous symmetry br…