3 papers
cond-mat.mes-hall2001
Density of proper delay times in chaotic and integrable quantum billiards
M. G. A. Crawford, P. W. Brouwer
We calculate the density P(τ) of the eigenvalues of the Wigner-Smith time delay matrix for two-dimensional rectangular and circular billiards with one opening. For long times, the…
quant-ph2001
Temporally stable coherent states in energy degenerate systems: The hydrogen atom
Michael G. A. Crawford
Klauder's recent generalization of the harmonic oscillator coherent states [J. Phys. A 29, L293 (1996)] is applicable only in non-degenerate systems, requiring some additional stru…
quant-ph2001
Relativistic precession of quantum elliptical states in the Coulomb potential
Michael G. A. Crawford
A special relativistic perturbation to non-relativistic quantum mechanics is shown to lead to the special relativistic prediction for the rate of precession for quantum states in t…