{"id":2272,"date":"2020-01-07T22:50:49","date_gmt":"2020-01-07T22:50:49","guid":{"rendered":"http:\/\/lptms.u-psud.fr\/christophe_texier\/?page_id=2272"},"modified":"2023-09-04T14:32:08","modified_gmt":"2023-09-04T14:32:08","slug":"multichannel-disordered-model","status":"publish","type":"page","link":"http:\/\/www.lptms.universite-paris-saclay.fr\/christophe_texier\/recherche\/some-properties-of-the-one-dimensional-schrodinger-operator-with-random-potential\/multichannel-disordered-model\/","title":{"rendered":"Multichannel models"},"content":{"rendered":"<h3>The multichannel Dirac equation with a random (matricial) mass<\/h3>\n<p>We have considered the Dirac equation with a Gaussian white noise N*N matrical mass in:<\/p>\n<ul>\n<li>Aur\u00e9lien Grabsch and Christophe Texier,<br \/>\n<strong>Topological phase transitions\u00a0 in the 1D multichannel Dirac equation with random mass and a random matrix model<\/strong>,<br \/>\n<a href=\"http:\/\/iopscience.iop.org\/article\/10.1209\/0295-5075\/116\/17004\/meta;jsessionid=2307AFF1973D4ACBF1E032CB85A50FD8.c4.iopscience.cld.iop.org\">Europhys. Lett. 116, 17004 (2016)<\/a><br \/>\n<a href=\"http:\/\/arxiv.org\/abs\/1506.05322\"> cond-mat arXiv:1506.05322<\/a><\/li>\n<\/ul>\n<p>The model presents interesting topological properties : as the ratio mass\/disorder is tuned the systems exhibits a sequence of N topological phase transitions. The phase diagram (below) in the half plane (mass,disorder) presents <em>N<\/em>+1 sectors:<\/p>\n<p><a href=\"\/christophe_texier\/files\/2010\/03\/phase-diag-big.png\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1792 aligncenter\" src=\"\/christophe_texier\/files\/2010\/03\/phase-diag-big-300x164.png\" alt=\"phase-diag-big\" width=\"223\" height=\"122\" srcset=\"http:\/\/www.lptms.universite-paris-saclay.fr\/christophe_texier\/files\/2010\/03\/phase-diag-big-300x164.png 300w, http:\/\/www.lptms.universite-paris-saclay.fr\/christophe_texier\/files\/2010\/03\/phase-diag-big.png 478w\" sizes=\"auto, (max-width: 223px) 100vw, 223px\" \/><\/a><\/p>\n<p style=\"padding-left: 60px;\"><span style=\"color: #ff0000;\"><strong>See also<span style=\"color: #000000;\"> page \u201c <a href=\"\/christophe_texier\/recherche\/random-matrix-theory\/products-of-random-matrices\/\">products of random matrices<\/a> \u201d<br \/>\n<\/span><\/strong><\/span><\/p>\n<h3>Wigner-Smith time delay matrix and Wigner time delay for semi-infinite multichannel disordered wires<\/h3>\n<p>(within the multichannel Schr\u00f6dinger equation)<i><\/i><\/p>\n<ul>\n<li>Aur\u00e9lien Grabsch and Christophe Texier,<br \/>\n<strong> Distribution of spectral linear statistics on random matrices beyond the large deviation function \u2014 Wigner time delay in multichannel disordered wires,<br \/>\n<\/strong><a href=\"http:\/\/iopscience.iop.org\/article\/10.1088\/1751-8113\/49\/46\/465002\/meta;jsessionid=2DEDBA974C0D7DE398E47CF5D2B335AB.c2.iopscience.cld.iop.org\">J. Phys. A : Math. Theor. <strong>49<\/strong>, 465002 (2016)<\/a><br \/>\n<a href=\"http:\/\/arxiv.org\/abs\/1602.03370\">cond-mat arXiv:1602.03370<\/a><\/li>\n<\/ul>\n<ul>\n<li>Aur\u00e9lien Grabsch and Christophe Texier,<i><br \/>\n<\/i><strong>Wigner-Smith matrix, exponential functional of the matrix Brownian motion and matrix Dufresne identity<\/strong><br \/>\n<a href=\"https:\/\/iopscience.iop.org\/article\/10.1088\/1751-8121\/aba215\">J. Phys. A : Math. Theor. <strong>53<\/strong>, 425003 (2020)<\/a><br \/>\n<a href=\"https:\/\/arxiv.org\/abs\/2002.12077\">math-ph arXiv:2002.12077<\/a><\/li>\n<\/ul>\n<p style=\"padding-left: 30px;\"><span style=\"color: #ff0000;\"><strong>see also<\/strong><\/span> page on \u00a0\u00bb <span style=\"color: #ff0000;\"><strong><a style=\"color: #ff0000;\" href=\"\/christophe_texier\/recherche\/some-properties-of-the-one-dimensional-schrodinger-operator-with-random-potential\/wigner-time-delay-in-disordered-1d-models\/\"><span style=\"color: #000000;\">Wigner time delay in 1D<\/span><\/a><\/strong><span style=\"color: #000000;\"> \u00ab\u00a0<\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The multichannel Dirac equation with a random (matricial) mass We have considered the Dirac equation with a Gaussian white noise N*N matrical mass in: Aur\u00e9lien Grabsch and Christophe Texier, Topological phase transitions\u00a0 in the 1D multichannel Dirac equation with random &hellip; <a href=\"http:\/\/www.lptms.universite-paris-saclay.fr\/christophe_texier\/recherche\/some-properties-of-the-one-dimensional-schrodinger-operator-with-random-potential\/multichannel-disordered-model\/\">Continuer la lecture <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":7,"featured_media":0,"parent":42,"menu_order":16,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2272","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"http:\/\/www.lptms.universite-paris-saclay.fr\/christophe_texier\/wp-json\/wp\/v2\/pages\/2272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.lptms.universite-paris-saclay.fr\/christophe_texier\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/www.lptms.universite-paris-saclay.fr\/christophe_texier\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/www.lptms.universite-paris-saclay.fr\/christophe_texier\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/www.lptms.universite-paris-saclay.fr\/christophe_texier\/wp-json\/wp\/v2\/comments?post=2272"}],"version-history":[{"count":9,"href":"http:\/\/www.lptms.universite-paris-saclay.fr\/christophe_texier\/wp-json\/wp\/v2\/pages\/2272\/revisions"}],"predecessor-version":[{"id":2720,"href":"http:\/\/www.lptms.universite-paris-saclay.fr\/christophe_texier\/wp-json\/wp\/v2\/pages\/2272\/revisions\/2720"}],"up":[{"embeddable":true,"href":"http:\/\/www.lptms.universite-paris-saclay.fr\/christophe_texier\/wp-json\/wp\/v2\/pages\/42"}],"wp:attachment":[{"href":"http:\/\/www.lptms.universite-paris-saclay.fr\/christophe_texier\/wp-json\/wp\/v2\/media?parent=2272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}