Výsledky vyhledávání - "Claudia M. Sánchez"

Akademický článek

Microbiota intestinal humana y enfermedad de Parkinson

Autor: Juan C. Delgado-Uriarte, Karen E. Guzman-Sanchez, Bryan A. Priego-Parra, Noel I. Plascencia-Alvarez, Claudia M. Sánchez-Martinez, Lilia Nuñez-Orozco

Publikováno v: Anales Médicos, Vol 68, Iss 4 (2023)

La microbiota intestinal y su actividad están directa o indirectamente relacionadas con diferentes funciones en el cuerpo humano. Las interacciones entre los microorganismos intestinales y el SNC se han descrito a través del eje microbiota-intestin

Externí odkaz: https://doaj.org/article/0a2e2a9aabfd42279e6470671faeb22b

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Perturbation Independent Decay of the Loschmidt Echo in a Many-Body System

Autor: Horacio M. Pastawski, K. X. Wei, Ana Karina Chattah, L. Buljubasich, Claudia M. Sánchez, Paola Cappellaro

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

When a qubit or spin interacts with others under a many-body Hamiltonian, the information it contains progressively scrambles. Here, nuclear spins of an adamantane crystal are used as a quantum simulator to monitor such dynamics through out-of-time-o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86261fa1d03d125e3bb9ac4a66d2bf98
https://doi.org/10.1103/physrevlett.124.030601

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Estrés laboral y salud mental en docentes de primaria y secundaria

Autor: Astrid C Guevara-Manrique, Claudia M Sánchez-Lozano, Liliana Parra

Publikováno v: Revista Colombiana de Salud Ocupacional. 4:30-32

Introduccion: En ocasiones el entorno laboral va en contra de las expectativas del trabajador apareciendo el riesgo psicolaboral, representado en: estres laboral y patologias de salud mental. La relacion entre estres y salud mental ha sido explorada

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::40935cba0452a61941d39f6c13175b85
https://doi.org/10.18041/2322-634x/rcso.4.2014.4963

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Time evolution of multiple quantum coherences in NMR

Autor: Horacio M. Pastawski, Patricia R. Levstein, Claudia M. Sánchez

Publikováno v: Physica B: Condensed Matter. 398:472-475

In multiple quantum NMR, individual spins become correlated with one another over time through their dipolar couplings. In this way, the usual Zeeman selection rule can be overcome and forbidden transitions can be excited. Experimentally, these multi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d3bc06479367807b767cf4721781f000
https://doi.org/10.1016/j.physb.2007.04.092

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Experimental quantification of decoherence via the Loschmidt echo in a many spin system with scaled dipolar Hamiltonians

Autor: Patricia R. Levstein, Horacio M. Pastawski, L. Buljubasich, Axel D. Dente, Claudia M. Sánchez, Ana Karina Chattah

Publikováno v: Repositorio Digital Universitario (UNC)
Universidad Nacional de Córdoba
instacron:UNC

We performed Loschmidt echo nuclear magnetic resonance experiments to study decoherence under a scaled dipolar Hamiltonian by means of a symmetrical time-reversal pulse sequence denominated Proportionally Refocused Loschmidt (PRL) echo. The many-spin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f143c00b32a1539ec5545f3a777c9a5

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Clustering and decoherence of correlated spins under double quantum dynamics

Autor: Horacio M. Pastawski, Ana Karina Chattah, Rodolfo H. Acosta, Claudia M. Sánchez, Patricia R. Levstein

Publikováno v: Repositorio Digital Universitario (UNC)
Universidad Nacional de Córdoba
instacron:UNC
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

We present an improved approach for the study of the evolution of spin correlations and decoherence in multiple quantum nuclear magnetic resonance experiments. The infinite system, constituted by the protons of a polycrystalline adamantane sample, ev

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d49bc4153e42f44516f2fa79b545f66

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Quantum dynamics of excitations and decoherence in many-spin systems detected with Loschmidt echoes: its relation to their spreading through the Hilbert space

Autor: Patricia R. Levstein, Horacio M. Pastawski, Claudia M. Sánchez, Ana Karina Chattah, L. Buljubasich

Publikováno v: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 374:20150155

In this work, we overview time-reversal nuclear magnetic resonance (NMR) experiments in many-spin systems evolving under the dipolar Hamiltonian. The Loschmidt echo (LE) in NMR is the signal of excitations which, after evolving with a forward Hamilto

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1fa4b4e8a38138f21a78bbd5eb811de1
https://doi.org/10.1098/rsta.2015.0155

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Effective one-body dynamics in multiple-quantum NMR experiments

Autor: Claudia M. Sánchez, F. Y. Oliva, Patricia R. Levstein, Horacio M. Pastawski, Elena Rufeil-Fiori

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

A suitable NMR experiment in a one-dimensional dipolar coupled spin system allows one to reduce the natural many-body dynamics into effective one-body dynamics. We verify this in a polycrystalline sample of hydroxyapatite (HAp) by monitoring the exci

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::934b08be5ca3a908cafce8685530485a
https://doi.org/10.1103/physreva.79.032324

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