30 citations · 60 across the 3 of their papers we have counts for
3 papers
Negative time delay for wave reflection from a one-dimensional semi-harmonic well
Oscar Rosas-Ortiz, Sara Cruz y Cruz, Nicolas Fernandez-Garcia
It is reported that the phase time of particles which are reflected by a one-dimensional semi-harmonic well includes a time delay term which is negative for definite intervals of t…
Dynamical Equations, Invariants and Spectrum Generating Algebras of Mechanical Systems with Position-Dependent Mass
Sara Cruz y Cruz, Oscar Rosas-Ortiz
We analyze the dynamical equations obeyed by a classical system with position-dependent mass. It is shown that there is a non-conservative force quadratic in the velocity associate…
A Primer on Resonances in Quantum Mechanics
O. Rosas-Ortiz, N. Fernandez-Garcia, Sara Cruz y Cruz
After a pedagogical introduction to the concept of resonance in classical and quantum mechanics, some interesting applications are discussed. The subject includes resonances occurr…