8 citations · 22 across the 9 of their papers we have counts for
9 papers
Quasi-equilibrium and quantum correlation in an open spin-pair system
J. A. Taboada, H. H. Segnorile, C. E. González +1
Quasi-equilibrium states that can be prepared in solids through Nuclear Magnetic Resonance (NMR) techniques are out-of-equilibrium states that slowly relax towards thermodynamic eq…
Spectral analysis of signals by time-domain statistical characterization and neural network processing: Application to correction of spectral amplitude alterations in pulse-like waveforms
Guillermo H. Bustos, Héctor H. Segnorile
We present a time-domain method to detect and correct spectral alterations of signals by employing statistical characterization of waveforms and a pattern-recognition procedure usi…
An extended method for Statistical Signal Characterization using moments and cumulants, as a fast and accurate pre-processing stage of simple ANNs applied to the recognition of pattern alterations in pulse-like waveforms
G. H. Bustos, H. H. Segnorile
We propose a feature-extraction procedure based on the statistical characterization of waveforms, applied as a fast pre-processing stage in a pattern recognition task using simple…
Adiabatic quantum decoherence in many non-interacting subsystems induced by the coupling with a common boson bath
H. H. Segnorile, C. E. González, R. C. Zamar
This work addresses quantum adiabatic decoherence of many-body spin systems coupled with a boson field in the framework of open quantum systems theory. We generalize the traditiona…
Mechanisms of irreversible decoherence in solids
Federico Daniel Domínguez, Ricardo César Zamar, Héctor Hugo Segnorile +1
Refocalization sequences in Nuclear Magnetic Resonance (NMR) can in principle reverse the coherent evolution under the secular dipolar Hamiltonian of a closed system. We use this e…
Irreversible decoherence of dipole interacting nuclear spins coupled with a phonon bath
F. D. Domínguez, C. E. González, H. H. Segnorile +1
We report a first-principle theoretical study of the adiabatic decoherence undergone by a nuclear spin system in a solid, coupled to the phonon field through the dipolar interactio…
Evolution towards quasi-equilibrium in nematic liquid crystals studied through decoherence of multi-spin multiple-quantum coherences
H. H. Segnorile, C. E. González, R. C. Zamar
New evidence is presented in favor of irreversible decoherence as the mechanism which leads an initial out-of-equilibrium state to quasi-equilibrium in nematic liquid crystals. The…
Evidence of several dipolar quasi-invariants in Liquid Crystals
C. J. Bonin, C. E. González, H. H. Segnorile +1
In a closed quantum system of N coupled spins with magnetic quantum number I, there are about (2I + 1)^N constants of motion. However, the possibility of observing such quasi-invar…
Quantum irreversible decoherence behaviour in open quantum systems with few degrees of freedom. Application to 1H NMR reversion experiments in nematic liquid crystals
H. H. Segnorile, R. C. Zamar
An experimental study of NMR spin decoherence in nematic liquid crystals (LC) is presented. Decoherence dynamics can be put in evidence by means of refocusing experiments of the di…