29 citations · 48 across the 9 of their papers we have counts for
9 papers
The Schrodinger equation and negative energies
S. Bruce
We present a nonrelativistic wave equation for the electron in (3+1)-dimensions which includes negative-energy eigenstates. We solve this equation for three well-known instances, r…
Supersymmetry, quark confinement and the harmonic oscillator
S. A. Bruce, P. C. Minning
We study some quantum systems described by noncanonical commutation relations formally expressed as [q,p]=ihbar(I + chi H), where H is the associated (harmonic oscillator-like) Ham…
Comments on the Aharonov-Casher effect
S. Bruce
We study the basic requirements for neutron confinement in the framework of some 3-D Aharonov-Casher configurations.
A Hamiltonian for the description of a non-relativistic spin-1/2 free particle
S. Bruce
We propose a Hamiltonian for a nonrelativistic spin 1/2 \QTR{it}{free} particle (e.g. an electron) and find that it contains information of its internal degrees of freedom in the r…
Comments on discrete time in quantum mechanics
S. Bruce
The possibility that time can be regarded as a discrete parameter is re-examined. We study the dynamics of the free particle and find in some cases superluminal propagation.
How to build a non-spreading wave packet in quantum mechanics
S. Bruce
Quantum mechanics asserts that a wave packet must inevitably spread as time progresses since the dispersion relation for the quantum waves is assumed to be quadratic in the momentu…