4 papers
Extended Cahill-Glauber formalism for finite dimensional spaces: I. Fundamentals
M. Ruzzi, M. A. Marchiolli, D. Galetti
The Cahill-Glauber approach for quantum mechanics on phase-space is extended to the finite dimensional case through the use of discrete coherent states. All properties and features…
Quantum spin tunneling in a soluble quasi-spin model: An angle-based potential description
D. Galetti, C. L. Lima, B. M. Pimentel
We propose an approach which allows to construct and use a potential function written in terms of an angle variable to describe interacting spin systems. We show how this can be im…
Time Interval Operators
M. Ruzzi, D. Galetti
In this work we will advance farther along a line previously developed concerning our proposal of a time interval operator, on finite dimensional spaces. The time interval operator…
Irreducibility and Compositeness in q-Deformed Harmonic Oscillator Algebras
D. Galetti, J. T. Lunardi, B. M. Pimentel +1
q-Deformed harmonic oscillator algebra for real and root of unity values of the deformation parameter is discussed by using an extension of the number concept proposed by Gauss, na…