{"id":7260,"date":"2019-10-15T11:24:40","date_gmt":"2019-10-15T09:24:40","guid":{"rendered":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-colloquium-local-structure-and-con%ef%ac%81gurational-entropy-in-liquids\/"},"modified":"2019-10-15T11:24:40","modified_gmt":"2019-10-15T09:24:40","slug":"physics-colloquium-local-structure-and-con%ef%ac%81gurational-entropy-in-liquids","status":"publish","type":"events","link":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-colloquium-local-structure-and-con%ef%ac%81gurational-entropy-in-liquids\/","title":{"rendered":"Physics Colloquium: Local structure and con\ufb01gurational entropy in liquids"},"content":{"rendered":"<section class=\"wp-block-unilux-blocks-free-section section\"><div class=\"container xl:max-w-screen-xl\"><p>We conventionally think of liquids as disordered but dense ensembles of atoms or molecules chie\ufb02y characterized by their \ufb02ow properties, for instance their viscosity. Nonetheless, a closer look to model liquids in experiments and computer simulations has revealed that, at low temperature and\/or high pressure, systems that are globally disordered present non-trivial orientational and translational correlations at a local scale. I will discuss how these can be rationalised within an energy landscape picture [1] of the structure and relaxation of liquids, emphasising the role played by the number of metastable states or, better, its logarithm i.e. the con\ufb01gurational entropy [2], and hits relation with the \ufb02ow properties, such as the viscosity. I will then discuss in detail a variety of cases where non-trivial local correlations emerge in disordered systems: I will start with colloidal spheres [3, 4], move to classical atomistic liquids [5] and conclude with recent results on a surprisingly complex liquid such as Gallium [6]. In this journey, we will invoke and describe several theoretical tools:the morphometric theory of liquids [7], geometric frustration of liquids [8] and structural-dynamical phase transitions [9].<\/p><p>[1]\u00a0 Stillinger. <i>Energy Landscapes, Inherent Structures, and Condensed-Matter Phenomena<\/i>. Princeton University Press, (2015).<\/p><p>[2]\u00a0 Berthier, Ozawa Scalliet, <i>J. Chem. Phys<\/i>. <strong>150<\/strong>, 160902 (2019)<\/p><p>[3]\u00a0 Hallett, Turci, Royall, <i>Nature Communications <\/i>, 3272 (2018)<strong>9<\/strong><\/p><p>[4]\u00a0 Robinson, Turci, Roth, Royall, <i>Phys. Rev. Lett. <\/i>, 068004 (2019)<strong>122<\/strong><\/p><p>[5]\u00a0 Turci, Royall, Speck, <i>Phys. Rev. X <\/i>, 031028 (2017)<strong>7<\/strong><\/p><p>[6]\u00a0 Drewitt, Turci, Lord,et al in preparation (2019)<\/p><p>[7]\u00a0 Robinson, Turci, Roth, Royall, (2019) arXiv:1908.03508<\/p><p>[8]\u00a0 Turci, Tarjus, Royall, <i>Phys. Rev. Lett. <\/i>118, 215501, (2017)<\/p><p>[9]\u00a0 F Turci T Speck and CP Royall, <i>Eur. Phys. J. E,<\/i> 41: 54 (2018)<\/p><p><strong>BIOGRAPHY : <\/strong>Francesco Turci obtained his PhD in Physics in 2012 at the Universit\u00e9 de Montpellier (France) on a project on transport and kinetically constrained models. From 2012 to 2014 he worked as a Postdoctoral Fellow at the University of Luxembourg on crystallisation and nonequilibrium solid-liquid interfaces. Since 2014, he is Senior Postdoctoral Research Associate at the University of Bristol (UK), working on theory and numerical simulations for glass forming liquids, gels, crystals and active systems in close collaboration with experimentalists.<\/p><\/div><\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":0,"featured_media":7261,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"featured_image_focal_point":[],"show_featured_caption":false,"ulux_newsletter_groups":"","uluxPostTitle":"","uluxPrePostTitle":"","_trash_the_other_posts":false,"_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"event_start_date":"2019-11-06 16:00:00","event_end_date":"2019-11-06 17:00:00","event_speaker_name":"Dr. Francesco TURCI, invited by Dr. Matteo POLETTINI","event_speaker_link":"","event_is_online":false,"event_location":"Campus Limpertsberg, B\u00e2timent des Sciences - Room BS 0.04","event_street":"","event_location_link":"","event_zip_code":"","event_city":"","event_country":"LU"},"events-topic":[315],"events-type":[],"organisation":[80],"authorship":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v22.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Physics Colloquium: Local structure and con\ufb01gurational entropy in liquids - FSTM events I Uni.lu<\/title>\n<meta name=\"description\" content=\"We conventionally think of liquids as disordered but dense ensembles of atoms or molecules chie\ufb02y characterized by their \ufb02ow properties, for instance\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-colloquium-local-structure-and-con\ufb01gurational-entropy-in-liquids\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Physics Colloquium: Local structure and con\ufb01gurational entropy in liquids\" \/>\n<meta property=\"og:description\" content=\"We conventionally think of liquids as disordered but dense ensembles of atoms or molecules chie\ufb02y characterized by their \ufb02ow properties, for instance\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-colloquium-local-structure-and-con\ufb01gurational-entropy-in-liquids\/\" \/>\n<meta property=\"og:site_name\" content=\"FSTM EN\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/fstm.uni.lu\/\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2026\/03\/03111650\/FSTM_SM-Profile_1600x1600px-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"2560\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-colloquium-local-structure-and-con%ef%ac%81gurational-entropy-in-liquids\/\",\"url\":\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-colloquium-local-structure-and-con%ef%ac%81gurational-entropy-in-liquids\/\",\"name\":\"Physics Colloquium: Local structure and con\ufb01gurational entropy in liquids - 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