157 citations · 1.3k across the 76 of their papers we have counts for
3 papers · 2 filters
The Three-Dimensional Noncommutative Nonlinear Sigma Model in Superspace
H. O. Girotti, M. Gomes, A. Yu. Petrov +2
We study the superspace formulation of the noncommutative nonlinear supersymmetric O(N) invariant sigma-model in 2+1 dimensions. We prove that the model is renormalizable to all or…
The Noncommutative Supersymmetric Nonlinear Sigma Model
H. O. Girotti, M. Gomes, V. O. Rivelles +1
We show that the noncommutativity of space-time destroys the renormalizability of the 1/N expansion of the O(N) Gross-Neveu model. A similar statement holds for the noncommutative…
Alternative Dimensional Reduction via the Density Matrix
C. A. A. de Carvalho, John M. Cornwall, A. J. da Silva
We give graphical rules, based on earlier work for the functional Schrodinger equation, for constructing the density matrix for scalar and gauge fields at finite temperature T. Mor…