5 papers
Wave packet propagation and the materialization of classical trajectories
James M. Feagin, John S. Briggs
Unbound wave packets propagating to macroscopic space and time coordinates become proportional to their (Fourier transform) momentum distribution at earlier times whereby the asymp…
Quantum scattering with semiclassical asymptotic motion
John S. Briggs, James M. Feagin
Conventional scattering theory is incomplete in that it does not adequately describe the behaviour of the wave function at macroscopic distances from the scattering reaction volume…
Classical hallmarks of macroscopic quantum wave function propagation
James M. Feagin, John S. Briggs
The precise connection between quantum wave functions and the underlying classical trajectories often is presented rather vaguely by practitioners of quantum mechanics. Here we dem…
The generalised imaging theorem: autonomous quantum to classical transitions
John S. Briggs, James M. Feagin
The mechanism of the transition of a dynamical system from quantum to classical mechanics is of continuing interest. Practically it is of importance for the interpretation of multi…
The generalized imaging theorem: quantum to classical transition without decoherence
John S. Briggs, James M. Feagin
The mechanism of the transition of a dynamical system from quantum to classical mechanics is one of the remaining challenges of quantum theory. Currently, it is considered to occur…