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Classes of exact wave functions for general time-dependent Dirac Hamiltonians in 1+1 dimensions
(Physical Review A: Atomic, Molecular, and Optical Physics, 2003-05-01) [Artigo]
The construction of two classes of exact solutions for the most general time-dependent Dirac Hamiltonian in 1+1 dimensions was discussed. The extension of solutions by introduction of a time-dependent mass was elaborated. ...
Variational method for excited states from supersymmetric techniques
(Canadian Journal of Physics, 2003-11-01) [Artigo]
We suggest a method for constructing trial eigenfunctions for excited states to be used in the variational method. This method is a generalization of the one that uses a superpotential to obtain the trial functions for the ...