60 citations · 132 across the 6 of their papers we have counts for
6 papers
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…
Quantum or classical perception according to the Imaging theorem
John S. Briggs
An assessment is given as to the extent to which pure unitary evolution, as distinct from environmental decohering interaction, can provide the transition necessary for an observer…
The cross-over from tunnelling to multiphoton ionization of atoms
Michael Klaiber, John S Briggs
We present a theory illuminating the cross-over from strong-field tunnelling ionization to weak-field multiphoton ionization in the interaction of a classical laser field with a hy…
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 J- and H-bands of dye aggregate spectra: Analysis of the coherent exciton scattering (CES) approximation
Jan Roden, Alexander Eisfeld, John S. Briggs
The validity of the CES approximation is investigated by comparison with direct diagonalisation of a model vibronic Hamiltonian of identical monomers interacting electronically…
Time Dependence in Quantum Mechanics
John S Briggs, Jan M Rost
It is shown that the time-dependent equations (Schrödinger and Dirac) for a quantum system can be always derived from the time-independent equation for the larger object of the sys…