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Chapter and Conference Paper
Study of ± J Ising Spin Glasses via Multicanonical Ensemble
We performed numerical simulations of 2D and 3D Edwards-Anderson spin glass models by using the recently developed multicanonical ensemble. Our ergodicity times increase with the lattice size approximately as V ...
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Chapter
SU(2) Lattice Gauge Theory: Standard Action Versus Symanzik’s Tree-Improved Action
We carry out Monte Carlo simulations of the 4d SU(2) lattice gauge theory. The standard action and the Symanzik tree-improved action are used. Results for the string tension, glueball masses, and energy-momentum ...
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Chapter and Conference Paper
S matrix theory of the massive thirring model
The S matrix theory of the massive Thirring model, describing the exact quantum scattering of solitons and their bound-states, is reviewed. Treated are: Factorization equations and their solution, boundstates,...