{"id":71588,"date":"2024-11-26T16:28:34","date_gmt":"2024-11-26T14:28:34","guid":{"rendered":"https:\/\/www.iemn.fr\/?p=71588"},"modified":"2024-11-26T16:28:34","modified_gmt":"2024-11-26T14:28:34","slug":"these-jean-paul-martischang-2","status":"publish","type":"post","link":"https:\/\/www.iemn.fr\/en\/a-la-une\/these-jean-paul-martischang-2.html","title":{"rendered":"Jean-Paul MARTISCHANG's thesis: \"Two analogues based on fluid mechanics: from cosmological to quantum scales\" 6\/12 11am"},"content":{"rendered":"<div id='layer_slider_1'  class='avia-layerslider main_color avia-shadow  avia-builder-el-0  el_before_av_heading  avia-builder-el-first  container_wrap sidebar_right'  style='height: 261px;'  ><div id=\"layerslider_58_1r5n8oy7lkjcm\" data-ls-slug=\"homepageslider\" class=\"ls-wp-container fitvidsignore ls-selectable\" style=\"width:1140px;height:260px;margin:0 auto;margin-bottom: 0px;\"><div class=\"ls-slide\" data-ls=\"duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" width=\"2600\" height=\"270\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1.jpg\" class=\"ls-bg\" alt=\"\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1.jpg 2600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-300x31.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-768x80.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-1030x107.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-1500x156.jpg 1500w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-705x73.jpg 705w\" sizes=\"auto, (max-width: 2600px) 100vw, 2600px\" \/><ls-layer style=\"font-size:14px;text-align:left;font-style:normal;text-decoration:none;text-transform:none;font-weight:700;letter-spacing:0px;border-style:solid;border-color:#000;background-position:0% 0%;background-repeat:no-repeat;width:180px;height:30px;left:0px;top:231px;line-height:32px;color:#ffffff;border-radius:6px 6px 6px 6px;padding-left:50px;background-color:rgba(0, 0, 0, 0.57);\" class=\"ls-l ls-ib-icon ls-text-layer\" data-ls=\"minfontsize:0;minmobilefontsize:0;\"><i class=\"fa fa-quote-right\" style=\"color:#ffffff;margin-right:0.8em;font-size:1em;transform:translateY( -0.125em );\"><\/i>ACTUALITES<\/ls-layer><\/div><\/div><\/div><div id='after_layer_slider_1'  class='main_color av_default_container_wrap container_wrap sidebar_right'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-71588'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-k5dohoxw-358c504cc93f33fd0112cac1517b1cd8\">\n#top .av-special-heading.av-k5dohoxw-358c504cc93f33fd0112cac1517b1cd8{\nmargin:0 0 10px 0;\npadding-bottom:4px;\n}\nbody .av-special-heading.av-k5dohoxw-358c504cc93f33fd0112cac1517b1cd8 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-k5dohoxw-358c504cc93f33fd0112cac1517b1cd8 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-k5dohoxw-358c504cc93f33fd0112cac1517b1cd8 av-special-heading-h4  avia-builder-el-1  el_after_av_layerslider  el_before_av_hr  avia-builder-el-first  av-linked-heading'><h4 class='av-special-heading-tag'  itemprop=\"headline\"  >Jean-Paul MARTISCHANG's thesis: \"Two analogues based on fluid mechanics: from cosmological to quantum scales\" 6\/12 11am <\/h4><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-18u73nj-dad6a947580930e400fc42ba200e80f1\">\n#top .hr.av-18u73nj-dad6a947580930e400fc42ba200e80f1{\nmargin-top:5px;\nmargin-bottom:5px;\n}\n.hr.av-18u73nj-dad6a947580930e400fc42ba200e80f1 .hr-inner{\nwidth:100%;\n}\n<\/style>\n<div  class='hr av-18u73nj-dad6a947580930e400fc42ba200e80f1 hr-custom  avia-builder-el-2  el_after_av_heading  el_before_av_textblock  hr-left hr-icon-no'><span class='hr-inner inner-border-av-border-thin'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-jriy64i8-fd5f2e9d63bf552d6910d12f255eb26e'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" >\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-13ewzjw-68e036126b913e5028f77311dc66b825\">\n.av_font_icon.av-13ewzjw-68e036126b913e5028f77311dc66b825{\ncolor:#bfbfbf;\nborder-color:#bfbfbf;\n}\n.av_font_icon.av-13ewzjw-68e036126b913e5028f77311dc66b825 .av-icon-char{\nfont-size:60px;\nline-height:60px;\n}\n<\/style>\n<span  class='av_font_icon av-13ewzjw-68e036126b913e5028f77311dc66b825 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue8c9' data-av_iconfont='entypo-fontello' ><\/span><\/span>\n<p><strong>Thesis Jean-Paul MARTISCHANG<br \/>\n<\/strong><\/p>\n<p>Defence: 6 December 11:00 a.m.<strong><br \/>\n<\/strong>IEMN Amphitheatre<\/p>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jtefqx33-6db969b2e204313ebd62331ed4fc69ec\">\n#top .av_textblock_section.av-jtefqx33-6db969b2e204313ebd62331ed4fc69ec .avia_textblock{\nfont-size:15px;\n}\n<\/style>\n<section  class='av_textblock_section av-jtefqx33-6db969b2e204313ebd62331ed4fc69ec'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><div  class='hr av-kjh3zw-4dff888f744b728a1aca9b3a0971493a hr-default  avia-builder-el-6  avia-builder-el-no-sibling'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<h5><strong><span style=\"color: #800000;\">Jury<\/span><\/strong><\/h5>\n<table style=\"height: 253px;\" width=\"950\">\n<tbody>\n<tr>\n<td>Michael BAUDOIN<\/td>\n<td><\/td>\n<td>Professor<\/td>\n<td><\/td>\n<td>Universit\u00e9 de Lille<\/td>\n<td><\/td>\n<td>Directeur de th\u00e8se<\/td>\n<\/tr>\n<tr>\n<td>Philippe MARMOTTANT<\/td>\n<td><\/td>\n<td>Research Director<\/td>\n<td><\/td>\n<td>Grenoble Alpes University<\/td>\n<td><\/td>\n<td>Rapporteur<\/td>\n<\/tr>\n<tr>\n<td>Emmanuelle RIO<\/td>\n<td><\/td>\n<td>Professor<\/td>\n<td><\/td>\n<td>Paris-Saclay University<\/td>\n<td><\/td>\n<td>Rapporteur<\/td>\n<\/tr>\n<tr>\n<td>Michael LE BARS<\/td>\n<td><\/td>\n<td>Research Director<\/td>\n<td><\/td>\n<td>Aix Marseille University<\/td>\n<td><\/td>\n<td>Examinateur<\/td>\n<\/tr>\n<tr>\n<td>Germain ROUSSEAUX<\/td>\n<td><\/td>\n<td>Research Director<\/td>\n<td><\/td>\n<td>University of Poitiers<\/td>\n<td><\/td>\n<td>Examinateur<\/td>\n<\/tr>\n<tr>\n<td>Benjamin REICHERT<\/td>\n<td><\/td>\n<td>Senior lecturer<\/td>\n<td><\/td>\n<td>Universit\u00e9 de Lille<\/td>\n<td><\/td>\n<td>Examinateur<\/td>\n<\/tr>\n<tr>\n<td>Alexis DUCHESNE<\/td>\n<td><\/td>\n<td>Senior lecturer<\/td>\n<td><\/td>\n<td>Universit\u00e9 de Lille<\/td>\n<td><\/td>\n<td>Examinateur<\/td>\n<\/tr>\n<tr>\n<td>Lor\u00e8ne CHAMPOUGNY<\/td>\n<td><\/td>\n<td>Postdoctoral researcher<\/td>\n<td><\/td>\n<td>Universidad Carlos III de Madrid<\/td>\n<td><\/td>\n<td>Examinateur<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5><strong><span style=\"color: #800000;\">\u00a0<\/span><\/strong>Summary:<\/h5>\n<p>In physics, as in any other science, analogies can be seen as bridges that can be built between different fields~; for example, an experiment on the laboratory scale can find an echo on the quantum scale or that of galaxies. By detecting the similarities that characterise various phenomena that appear to be very far apart, we open up new points of view and a broader understanding of the subjects that are linked in this way. In this thesis, we propose and study two systems belonging to fluid mechanics, which present analogies with, for one, Newtonian gravitation, and for the other, quantum mechanics. In the first part, we explore the behaviour of liquid lenses on a horizontal film of soap. In our case, a lens is the object into which a drop of water or oil deposited on a film of soap is transformed. A liquid mass of relatively stable diameter over time, it deforms the film that supports it under its own weight, and is able to move within it according to these deformations. Based on both experimental and theoretical results, we show that two of these lenses can interact with each other, through the deformation of the film that supports them, according to a law analogous to that of gravitation. Their merging is also similar to the collision of two galaxies, either simulated or observed. In the second part, we study the ability of an acoustic dipole to self-propel in a fluid medium. The dipole, destabilised by a slight velocity perturbation, emits a field that can apply a self-induced radiation force to itself. We show that, under certain conditions, this force can propel the source dipole. This work opens the way to a coupled wave\/corpuscle system, which is in line with the interpretation of the pilot wave in quantum mechanics.<\/p>\n<h5 align=\"justify\"><strong>Abstract:<\/strong><\/h5>\n<p>In physics, as in other scientific disciplines, analogies can be seen as bridges that can be built between different fields. Thus, an experiment conducted on a laboratory scale may find an echo on the quantum or even galactic scale. By identifying the similarities between seemingly disparate phenomena, we open up new points of view and a broader understanding of the subjects in question. In this thesis, we propose and study two systems belonging to fluid mechanics, which respectively present analogies with Newtonian gravitation and quantum mechanics. In the first part, we explore the behaviour of liquid lenses on a horizontal soap film. In our case, a lens is the object formed by a droplet of water or oil upon being deposited on a soap film. As a liquid mass of relatively stable diameter over time, it deforms the supporting film under its weight and is able to move across it according to these deformations. Relying on both experimental and theoretical results, we show that two such lenses can interact through the deformations of the film, following a law analogous to that of gravitation. Furthermore, their merging process bears resemblance to the collision of two galaxies, either simulated or observed. In the second part, we investigate the ability of an acoustic dipole to self-propel in a fluid medium. When subjected to a slight velocity perturbation, the destabilised dipole emits a field that can exert a so called 'self-induced' radiation force on itself. We show that, under certain conditions, this force can effectively propel the source dipole. This work paves the way for a coupled wave-particle system, which aligns with the pilot-wave interpretation in quantum mechanics.<\/p>\n<\/div><\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":20,"featured_media":71447,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,8,319,65,87,84],"tags":[],"class_list":["post-71588","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-a-la-une","category-actualites","category-actualites2022","category-agenda","category-agenda-en","category-agenda-en-en"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/71588","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/comments?post=71588"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/71588\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media\/71447"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=71588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/categories?post=71588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/tags?post=71588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}