217 citations · 1.7k across the 41 of their papers we have counts for
5 papers · 1 filter
Bound states of moving potential wells in discrete wave mechanics
Stefano Longhi
Discrete wave mechanics describes the evolution of classical or matter waves on a lattice, which is governed by a discretized version of the Schrödinger equation. While for a vanis…
Refractionless propagation of discretized light
Stefano Longhi
Light refraction, i.e. the bending of the path of a light wave at the interface between two different dielectric media, is ubiquitous in optics. Refraction arises from the differen…
Rapidly-oscillating scatteringless non-Hermitian potentials and the absence of Kapitza stabilization
Stefano Longhi
In the framework of the ordinary non-relativistic quantum mechanics, it is known that a quantum particle in a rapidly-oscillating bound potential with vanishing time average can be…
Photonic Loschmidt echo in binary waveguide lattices
Stefano Longhi
Time reversal is one of the most intriguing yet elusive wave phenomenon of major interest in different areas of classical and quantum physics. Time reversal requires in principle t…
Non-Hermitian time-dependent perturbation theory: asymmetric transitions and transitionless interactions
S. Longhi, G. Della Valle
The ordinary time-dependent perturbation theory of quantum mechanics, that describes the interaction of a stationary system with a time-dependent perturbation, predicts that the tr…