6 papers
Evidence for undamped waves on ohmic materials
J. M. A. Figueiredo, Roberto B. Sardenberg
The propagation of electromagnetic fields in matter has been the subject of intensive studies since the discovery of its rich dynamics. Impedance measurements are one most used tec…
First principles quantum Monte Carlo
J. M. A. Figueiredo
Present quantum Monte Carlo codes use statistical techniques adapted to find the amplitude of a quantum system or the associated eigenvalues. Thus, they do not use a true physical…
Quantum Mechanics without amplitudes
J. M. A. Figueiredo
Amplitudes are the major logical object in Quantum Theory. Despite this fact they presents no physical reality and in consequence only observables can be experimetally checked. We…
Games with Quantum Analogues
J. M. A. Figueiredo
A new class of stochastic variables, governed by a specifice set of rules, is introduced. These rules force them to loose some properties usually assumed for this kind of variables…
Quantum Dynamics as a Stochastic Process
M. S. Torres, J. M. A. Figueiredo
We study the classical motion of a particle subject to a stochastic force. We then present a perturbative schema for the associated Fokker-Planck equation where, in the limit of a…
Quantum Dynamics in Stochastic Mechanics
J. M. A. Figueiredo
A study of the non-dissipative Brownian motion in vacuum is presented. The noise source associated to the stochastic process assumed in this work is vacuum fluctuations of some qua…