{"id":2,"date":"2018-02-08T16:06:15","date_gmt":"2018-02-08T15:06:15","guid":{"rendered":"https:\/\/www.idpoisson.fr\/gervalle\/?page_id=2"},"modified":"2025-04-16T16:19:35","modified_gmt":"2025-04-16T14:19:35","slug":"accueil","status":"publish","type":"page","link":"https:\/\/www.idpoisson.fr\/gervalle","title":{"rendered":"Accueil"},"content":{"rendered":"\n<p class=\"has-text-align-center\">[ <a href=\"#publis\">Publications<\/a> | <a href=\"#ens\">Teaching<\/a> | <a href=\"#conseils\">Science outreach and other contributions<\/a> ]<\/p>\n\n\n<div class=\"wp-block-image wp-duotone-unset-1\">\n<figure class=\"alignleft size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"902\" height=\"1024\" src=\"https:\/\/www.idpoisson.fr\/gervalle\/wp-content\/uploads\/sites\/62\/2025\/04\/20240828_140724-902x1024.jpg\" alt=\"\" class=\"wp-image-50\" style=\"width:130px;height:auto\" srcset=\"https:\/\/www.idpoisson.fr\/gervalle\/wp-content\/uploads\/sites\/62\/2025\/04\/20240828_140724-902x1024.jpg 902w, https:\/\/www.idpoisson.fr\/gervalle\/wp-content\/uploads\/sites\/62\/2025\/04\/20240828_140724-264x300.jpg 264w, https:\/\/www.idpoisson.fr\/gervalle\/wp-content\/uploads\/sites\/62\/2025\/04\/20240828_140724-768x872.jpg 768w, https:\/\/www.idpoisson.fr\/gervalle\/wp-content\/uploads\/sites\/62\/2025\/04\/20240828_140724-1352x1536.jpg 1352w, https:\/\/www.idpoisson.fr\/gervalle\/wp-content\/uploads\/sites\/62\/2025\/04\/20240828_140724-1803x2048.jpg 1803w\" sizes=\"auto, (max-width: 902px) 100vw, 902px\" \/><\/figure>\n<\/div>\n\n\n<p><br>My research primarily focuses on <strong>hairy black holes<\/strong> in various theoretical frameworks, including <strong>General Relativity<\/strong> coupled to non-Abelian fields and <strong>Modified Gravity. <\/strong><br>My work involves the <em>numerical<\/em> construction and <em>theoretical<\/em> analysis of static (or stationary) classical solutions, for which I develop custom numerical codes. I have also studied other types of field configurations such as <strong>boson stars<\/strong>, <strong>magnetic monopoles<\/strong>, and <strong>Q-balls.<\/strong><br><br>Affiliated Researcher at <a href=\"https:\/\/www.idpoisson.fr\">Institut Denis Poisson<\/a>, UMR CNRS 7013<br>Formerly affiliated with the  <a href=\"http:\/\/www.math.univ-tours.fr\/\">Department of Physics<\/a> at the <a href=\"http:\/\/www.univ-tours.fr\">University of Tours<\/a><br>Research group: <a href=\"https:\/\/www.idpoisson.fr\/equipe-de-physique-theorique\/\">Theoretical Physics<\/a> (Gravitation)<br><br><strong>Contact<\/strong><br>Office: Building E2, 1360<br>Phone: +33 2 47 36 69 46   <br>Emails: <a href=\"mailto:romain.gervalle@univ-tours.fr\">romain.gervalle@univ-tours.fr<\/a> <em>(institutional)<\/em>, <a href=\"mailto:gervalle.phys@gmail.com\">gervalle.phys@gmail.com<\/a><em> (professional and permanent) <\/em><br><br><strong>Mailing address<\/strong><br>Institut Denis Poisson, UMR CNRS 7013,<br>Universit\u00e9 de Tours,<br>Parc de Grandmont,<br>37200 Tours, France<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"publis\">Publications<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Black holes with electroweak hair <em>\u2014<\/em> the detailed derivation<\/strong><br>R. Gervalle and M. S. Volkov<br><em>To be submitted to Physical Review D<\/em> <em>\u2014<\/em> <em><a href=\"https:\/\/arxiv.org\/abs\/2504.09304\">arXiv:2504.09304<\/a><\/em><\/li>\n\n\n\n<li><strong>Black holes with electroweak hair<\/strong><br>R. Gervalle and M. S. Volkov<br><em><a href=\"https:\/\/doi.org\/10.1103\/PhysRevLett.133.171402\">Physical Review Letters 133, 171402 <em>(2024)<\/em><\/a> <em>\u2014<\/em> <a href=\"https:\/\/doi.org\/10.48550\/arXiv.2406.14357\">arXiv:2406.14357<\/a><\/em> <\/li>\n\n\n\n<li><strong>Electroweak multi-monopoles<\/strong><br>R. Gervalle and M. S. Volkov<br><em><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S055032132300041X\">Nuclear Physics B987, 116112 (2023)<\/a> <em>\u2014<\/em> <a href=\"https:\/\/doi.org\/10.48550\/arXiv.2211.04875\">arXiv:2211.04875<\/a><\/em> <\/li>\n\n\n\n<li><strong>Chains of rotating boson stars<\/strong><br>R. Gervalle<br><em><a href=\"https:\/\/doi.org\/10.1103\/PhysRevD.105.124052\">Physical Review D 105, 124052 (2022)<\/a> <em><em>\u2014<\/em><\/em> <a href=\"https:\/\/doi.org\/10.48550\/arXiv.2206.03982\">arXiv:2206.03982<\/a><\/em> <\/li>\n\n\n\n<li><strong>Electroweak monopoles and their stability<\/strong><br>R. Gervalle and M. S. Volkov<br><em><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0550321322002887\">Nuclear Physics B984, 115937 (2022)<\/a> <em><em>\u2014<\/em><\/em> <a href=\"https:\/\/doi.org\/10.48550\/arXiv.2203.16590\">arXiv:2203.16590<\/a><\/em> <\/li>\n\n\n\n<li><strong>Asymptotically flat hairy black holes in massive bigravity<\/strong><br>R. Gervalle and M. S. Volkov<br><em><a href=\"https:\/\/doi.org\/10.1103\/PhysRevD.102.124040\">Physical Review D 102, 124040 (2020)<\/a> <em><em>\u2014<\/em><\/em> <a href=\"https:\/\/doi.org\/10.48550\/arXiv.2008.13573\">arXiv:2008.13573<\/a><\/em> <\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"publis\">PhD Thesis<\/h3>\n\n\n\n<p>Title: <strong>Hairy black holes and other compact objects in theories of gravity<\/strong><br>Supervisors: M. S. Volkov and L. Villain<br>Defense date: December 13, 2023 at University of Tours<br>Manuscript available on: <a href=\"https:\/\/arxiv.org\/abs\/2410.13552\">arXiv:2410.13552<\/a> and <a href=\"https:\/\/theses.hal.science\/tel-04741505v1\">HAL theses<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ens\">Teaching<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Tutorial session (TD)<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Electrostatics and Elementary Circuit Theory <em>\u2014<\/em> 1st-year undergrad.<\/li>\n\n\n\n<li>Electromagnetism <em>\u2014<\/em> 2nd-year undergrad.<\/li>\n\n\n\n<li>Thermodynamics <em><em>\u2014<\/em><\/em> 2nd-year undergrad.<\/li>\n\n\n\n<li>Introduction to Nuclear Physics <em><em>\u2014<\/em><\/em> 2nd-year undergrad.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Lab session (TP)<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Classical Mechanics <em>\u2014<\/em> 1st-year undergrad.<\/li>\n\n\n\n<li>Experimental Physics <em>\u2014<\/em> 2nd-year undergrad.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-default\" \/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"conseils\">Other contributions to the scientific community<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Participation in a general public science program on the radio <\/strong><em><strong>France Culture<\/strong><\/em><strong> (2025)<\/strong><br>Discussion on hairy black holes in the show <em>La science, CQFD<\/em> : <em><a href=\"https:\/\/www.radiofrance.fr\/franceculture\/podcasts\/la-science-cqfd\/trous-noirs-chevelu-une-theorie-qui-decoiffe-8818638\">\u00ab\u00a0Trous noirs chevelus : une th\u00e9orie qui d\u00e9coiffe.\u00a0\u00bb<\/a><\/em><\/li>\n\n\n\n<li><strong>Science outreach article in <em>The Conversation<\/em> (2024)<\/strong><br><em><a href=\"https:\/\/theconversation.com\/decouverte-theorique-dun-nouveau-type-de-trous-noirs-ils-sont-chevelus-et-entoures-danneaux-de-particules-elementaires-244756\">\u00ab\u00a0D\u00e9couverte th\u00e9orique d&rsquo;un nouveau type de trous noirs. Ils sont \u00ab\u00a0chevelus\u00a0\u00bb et entour\u00e9s d&rsquo;anneaux de particules \u00e9l\u00e9mentaires.\u00a0\u00bb<\/a><\/em><\/li>\n\n\n\n<li><strong>PhD student representative of the MIPTIS Doctoral School (2020-2023)<\/strong><br>Organization of the PhD student&rsquo;s days, help in managing conflicts between PhD students and supervisors.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ Publications | Teaching | Science outreach and other contributions ] My research primarily focuses on hairy black holes in &hellip; <a href=\"https:\/\/www.idpoisson.fr\/gervalle\/\" class=\"more-link\">Plus <span class=\"screen-reader-text\">Accueil<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":153,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"footnotes":""},"folder":[],"class_list":["post-2","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.idpoisson.fr\/gervalle\/wp-json\/wp\/v2\/pages\/2","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.idpoisson.fr\/gervalle\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.idpoisson.fr\/gervalle\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.idpoisson.fr\/gervalle\/wp-json\/wp\/v2\/users\/153"}],"replies":[{"embeddable":true,"href":"https:\/\/www.idpoisson.fr\/gervalle\/wp-json\/wp\/v2\/comments?post=2"}],"version-history":[{"count":39,"href":"https:\/\/www.idpoisson.fr\/gervalle\/wp-json\/wp\/v2\/pages\/2\/revisions"}],"predecessor-version":[{"id":74,"href":"https:\/\/www.idpoisson.fr\/gervalle\/wp-json\/wp\/v2\/pages\/2\/revisions\/74"}],"wp:attachment":[{"href":"https:\/\/www.idpoisson.fr\/gervalle\/wp-json\/wp\/v2\/media?parent=2"}],"wp:term":[{"taxonomy":"folder","embeddable":true,"href":"https:\/\/www.idpoisson.fr\/gervalle\/wp-json\/wp\/v2\/folder?post=2"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}