Inner products of resonance solutions in 1-D quantum barriers

Details Inner products of resonance solutions in 1-D quantum barriers Inner products of resonance solutions in 1-D quantum barriers

2010-02-16

arxiv.org/abs/1002.3051v1

Physics

Mathematical Physics

13 pages, 2 figures

Scientific paper

The properties of a prescription for the inner products of the resonance (Gamow states), scattering (Dirac kets), and bound states for 1-dimensional quantum barriers are worked out. The divergent asypmtotic behaviour of the Gamow states is regularized using a Gaussian convergence factor first introduced by Zel'dovich. With this prescription, most of these states (with discrete complex energies) are found to be orthogonal to each other, to the bound states, and to the Dirac kets, except when they are neighbors, in which case the inner product is divergent. Therefore, as it happens for the continuum scattering states, the norm of the resonant ones remains non-calculable. Thus, they exhibit properties half way between the (continuum real) Dirac-delta orthogonality and the (discrete real) Kronecker-delta orthogonality of the bound states.

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