Search Results - "Segnorile, H. H"
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Quasi-equilibrium and quantum correlation in an open spin-pair system
Published in Quantum information processing (04-06-2024)“…Quasi-equilibrium states that can be prepared in solids through Nuclear Magnetic Resonance (NMR) techniques are out-of-equilibrium states that slowly relax…”
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Journal Article -
2
Proton NMR relaxation of the dipolar quasi-invariants of nematic methyl deuterated para-azoxyanisole within the high-temperature Redfield relaxation theory
Published in Physical review. E, Statistical, nonlinear, and soft matter physics (01-11-2006)“…The high-temperature Redfield spin-lattice relaxation theory is used for calculating the relaxation times of the different dipolar quasi-invariants in an…”
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3
Adiabatic quantum decoherence in many non-interacting subsystems induced by the coupling with a common boson bath
Published 19-10-2021“…Annals of Physics (2021) This work addresses quantum adiabatic decoherence of many-body spin systems coupled with a boson field in the framework of open…”
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4
NMR dipolar constants of motion in liquid crystals: Jeener–Broekaert, double quantum coherence experiments and numerical calculation on a 10-spin cluster
Published in Solid state nuclear magnetic resonance (01-10-2009)“…Two proton quasi-equilibrium states were previously observed in nematic liquid crystals, namely the S and W quasi-invariants. Even though the experimental…”
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5
Adiabatic quantum decoherence in many non-interacting subsystems induced by the coupling with a common boson bath
Published in Annals of physics (01-11-2021)“…This work addresses adiabatic quantum decoherence of many-body spin systems coupled with a boson field in the framework of open quantum systems theory. We…”
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6
Decoherence of multiple quantum coherences generated from a dipolar ordered state
Published in Physical review. E, Statistical, nonlinear, and soft matter physics (01-01-2011)“…Starting from the hypothesis that the decay of coherent signals observed in 1H NMR experiments is driven by quantum interference, irreversible decoherence, and…”
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7
Spectral analysis of signals by time-domain statistical characterization and neural network processing: Application to correction of spectral amplitude alterations in pulse-like waveforms
Published in 2022 IEEE Biennial Congress of Argentina (ARGENCON) (07-09-2022)“…We present a time-domain method to detect and correct spectral alterations of signals by employing statistical characterization of waveforms and a…”
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Conference Proceeding -
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Quantum irreversible decoherence behaviour in open quantum systems with few degrees of freedom. Application to 1H NMR reversion experiments in nematic liquid crystals
Published 18-09-2013“…THE JOURNAL OF CHEMICAL PHYSICS 139, 154901 (2013) An experimental study of NMR spin decoherence in nematic liquid crystals (LC) is presented. Decoherence…”
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Irreversible decoherence of dipole interacting nuclear spins coupled with a phonon bath
Published 07-05-2015“…Phys. Rev. A 93, 022120 (2016) We report a first-principle theoretical study of the adiabatic decoherence undergone by a nuclear spin system in a solid,…”
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10
Evidence of several dipolar quasi-invariants in Liquid Crystals
Published 06-05-2013“…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…”
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Extended method for Statistical Signal Characterization using moments and cumulants: Application to recognition of pattern alterations in pulse-like waveforms employing Artificial Neural Networks
Published 23-12-2022“…We propose a statistical procedure to characterize and extract features from a waveform that can be applied as a pre-processing signal stage in a pattern…”
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12
NMR-SSC Magnetic Field Profiler Applied to Magnetic Field Shimming
Published in Revista IEEE América Latina (01-02-2013)“…A new methodology aimed to control the spatial dependence of a magnetic field within a volume of interest is described. The designed hardware uses Nuclear…”
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13
Quasi-equilibrium and quantum correlation in an open spin-pair system
Published 29-03-2023“…Quasi-equilibrium states that can be prepared in solids through Nuclear Magnetic Resonance (NMR) techniques are out-of-equilibrium states that slowly relax…”
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Journal Article -
14
Evolution towards quasi-equilibrium in nematic liquid crystals studied through decoherence of multi-spin multiple-quantum coherences
Published 06-05-2015“…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…”
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Journal Article -
15
Spectral analysis of signals by time-domain statistical characterization and neural network processing: Application to correction of spectral amplitude alterations in pulse-like waveforms
Published 23-12-2022“…We present a time-domain method to detect and correct spectral alterations of signals by employing statistical characterization of waveforms and a…”
Get full text
Journal Article