3 papers
hep-th2003
New soluble nonlinear models for scalar fields
C. A. Almeida, D. Bazeia, L. Losano +1
We extend a deformation prescription recently introduced and present some new soluble nonlinear problems for kinks and lumps. In particular, we show how to generate models which pr…
quant-ph2003
Nonclassical degree of states of single and bipartite systems
A. T. Avelar, B. Baseia, J. M. C. Malbouisson
We consider experimental routes to determine the nonclassical degree of states of a field mode. We adopt a distance-type criterium based on the Hilbert-Schmidt metric to quantify t…
cond-mat.soft2002
Superconducting transition temperature in thin films
A. P. C. Malbouisson, J. M. C. Malbouisson, A. E. Santana
By considering the Ginzburg-Landau model, compactified in one of the spatial dimensions, and using a modified Matsubara formalism, we determine the dependence of the superconductin…