Výsledky vyhledávání - "Christophe Chatelain"

Le grand renversement. Pédocriminalité : comment en est-on arrivé là ?

Publikováno v: Revue d’histoire de l’enfance « irrégulière ». :263-265

L’auteur, sociologue independant, est un des rares chercheurs francais en sciences sociales a travailler sur le sujet de la pedophilie. Un precedent livre, L’enfant interdit. Comment la pedophilie est devenue scandaleuse, paru en 2013 est la vers

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::46f601bbfabbbedd8b5e197eb32fc36c
https://doi.org/10.4000/rhei.6029

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Finite-size scaling of the majority-voter model above the upper critical dimension

Autor: Christophe Chatelain

Publikováno v: Condensed Matter Physics. 26:13202

The majority-voter model is studied by Monte Carlo simulations on hypercubic lattices of dimension $d=2$ to 7 with periodic boundary conditions. The critical exponents associated to the Finite-Size Scaling of the magnetic susceptibility are shown to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d393ccf86b26f48792180dfe711f9f2e
https://doi.org/10.5488/cmp.26.13202

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Numerical evidence of superuniversality of the two-dimensional and three-dimensional random quantum Potts models

Autor: Christophe Chatelain, Valentin Anfray

Publikováno v: Physical Review B. 103

The random $q$-state quantum Potts model is studied on hypercubic lattices in dimensions 2 and 3 using the numerical implementation of the strong disorder renormalization group introduced by Kovacs and Igl\'oi [Phys. Rev. B 82, 054437 (2010)]. Critic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a28bd90b7826f625dd3c81ac5d06b25e
https://doi.org/10.1103/physrevb.103.174207

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Absence of logarithmic divergence of the entanglement entropies at the phase transitions of a 2D classical hard rod model

Autor: Christophe Chatelain, Andrej Gendiar

Publikováno v: The European Physical Journal B: Condensed Matter and Complex Systems
The European Physical Journal B: Condensed Matter and Complex Systems, Springer-Verlag, 2020, 93, pp.134. ⟨10.1140/epjb/e2020-10059-8⟩

International audience; Entanglement entropy is a powerful tool to detect continuous, discontinuous and even topological phase transitions in quantum as well as classical systems. In this work, von Neumann and Renyi entanglement entropies are studied

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a1f8e054d10ec1d27e87994dbe927a6
http://arxiv.org/abs/2002.00875

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Infinite disorder and correlation fixed point in the Ising model with correlated disorder

Autor: Christophe Chatelain

Publikováno v: The European Physical Journal. Special Topics
The European Physical Journal. Special Topics, EDP Sciences, 2017, 226, pp.805. ⟨10.1140/epjst/e2016-60332-9⟩

Recent Monte Carlo simulations of the q-state Potts model with a disorder displaying slowly-decaying correlations reported a violation of hyperscaling relation caused by large disorder fluctuations and the existence of a Griffiths phase, as in random

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8afd966b28f82ca78bb6a19338a5bb41
https://doi.org/10.1140/epjst/e2016-60332-9

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Improved Matrix Product Operator Renormalization Group: application to the N-color random Ashkin-Teller chain

Autor: Christophe Chatelain

Publikováno v: Journal of Statistical Mechanics: Theory and Experiment
Journal of Statistical Mechanics: Theory and Experiment, IOP Publishing, 2019, pp.093301. ⟨10.1088/1742-5468/ab3785⟩

International audience; Strong-Disorder Renormalization Group (SDRG), despite being a relatively simple real-space renormalization procedure, provides in principle exact results on the critical properties at the infinite-randomness fixed point of ran

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec3ef660849ab8d343c83fb1c99b2f7f
https://hal.archives-ouvertes.fr/hal-01844898

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Diverging conductance at the contact between random and pure quantum XX spin chains

Autor: Christophe Chatelain

Publikováno v: Journal of Statistical Mechanics: Theory and Experiment
Journal of Statistical Mechanics: Theory and Experiment, IOP Publishing, 2017, pp.113301. ⟨10.1088/1742-5468/aa933f⟩

A model consisting in two quantum XX spin chains, one homogeneous and the second with random couplings drawn from a binary distribution, is considered. The two chains are coupled to two different non-local thermal baths and their dynamics is governed

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06846756a01870965982f9a46df8e458
http://arxiv.org/abs/1707.03192

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MAGNETICA, une expo attirante

Autor: Hélène Fischer, Michel Hehn, Thomas Hauet, Daniel Lacour, Stéphane Suire, Gwladys Lengaigne, Danielle Pierre, Stéphane Heuraux, Christophe Chatelain, Stéphane Mangin, Pierre Molho, Julien Toulze, Patrick HENAFF

Publikováno v: 24e Congrès général SFP, Société Française de Physique
24e Congrès général SFP, Société Française de Physique, Jul 2017, Orsay, France
HAL

National audience; L'exposition destinée au tout public "MAGNETICA. Une expo attirante ..." a pour objectif de mettre à mal les croyances liées au magnétisme : elle présente une approche scientifique expérimentale du magnétisme afin d'en expli

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::4dce6ca718b4e15d5d8f1a44816ae5da
https://hal.archives-ouvertes.fr/hal-01576861

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Numerical study of the critical phases of the frustrated Z(5) model

Autor: Christophe Chatelain

Publikováno v: Journal of Statistical Mechanics: Theory and Experiment
Journal of Statistical Mechanics: Theory and Experiment, IOP Publishing, 2016, pp.073306. ⟨10.1088/1742-5468/2016/07/073306⟩

The phase diagram of the $\mathbb{Z}(5)$ spin model is studied numerically on the square lattice by means of the {\sl Density Matrix Renormalization Group}. In the regime where the two nearest-neighbor couplings have opposite signs, a critical phase,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b11eb0f8e888ae2cfd3ac5793373e691
http://arxiv.org/abs/1602.07814

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Numerical evidence of the double-Griffiths phase of the random quantum Ashkin-Teller chain

Autor: Christophe Chatelain, Dimitrios Voliotis

International audience; The random quantum Ashkin-Teller chain is studied numerically by means of time-dependent Density-Matrix Renormalization Group. The critical lines are estimated as the location of the peaks of the integrated autocorrelation tim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92491cf28f8822b84c4e78fcc15b4b0d
https://doi.org/10.1140/epjb/e2015-60593-3

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