{"id":7270,"date":"2019-11-26T13:36:10","date_gmt":"2019-11-26T12:36:10","guid":{"rendered":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/"},"modified":"2019-11-26T13:36:10","modified_gmt":"2019-11-26T12:36:10","slug":"physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom","status":"publish","type":"events","link":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/","title":{"rendered":"Physics Seminar: Stochastic thermodynamics with hidden degrees of freedom"},"content":{"rendered":"<section class=\"wp-block-unilux-blocks-free-section section\"><div class=\"container xl:max-w-screen-xl\"><p>Stochastic Thermodynamics allows the definition of heat and work for microscopic systems far from thermodynamic equilibrium\u00a0 from observations of their stochastic dynamics. An interesting scenario is presented by systems with interacting degrees of freedom. I show how one can apply the concept of causal conditioning to define a detached entropy production for a general bipartite Markov process. This quantity simplifies the dissection of the mutual influence the interacting systems have on each other. For the special cases of measurement-feedback systems and sensors I show how the formalism recovers known results which have been obtained separately before.<\/p><p>On the other hand, when some of the degrees of freedom are hidden from observation, a problem arises because a complete account of the energetics of small-scale systems necessitates that all relevant variables are resolved. In many experimental situations this is not feasible. I will present example systems which illustrate the influence of unobserved slow degrees of freedom on the energetics of small-scale systems. The first is a simple microswimmer model for which the observation of its movement alone does not suffice to correctly assess its energy dissipation. With the help of a second model of a driven process, I show that mapping the observed dynamics to a Markov process, while being a promising first attempt, results in the breaking of fluctuation theorems, which quickly exposes this flawed description. Finally, for the setting of a masked Markovian kinetic network, I show a more promising approach, which is to consider the full non-Markovian statistics of the observed data and to try to find an underlying hidden Markov model responsible for generating them.<\/p><p><strong>BIOGRAPHY:<\/strong><\/p><p>2011-2014: Bachelor studies of Engineering physics at the Jacobs University Bremen and Universit\u00e4t Oldenburg<\/p><p>2014-2016: Master studies at the Universit\u00e4t Oldenburg<\/p><p>2016-2020: PhD Student in the group of Andreas Engel at the Universit\u00e4t Oldenburg working on the Stochastic Thermodynamics with interacting and hidden degrees of freedom<\/p><\/div><\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":0,"featured_media":7271,"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":"2020-01-13 11:00:00","event_end_date":"2020-01-13 12:00:00","event_speaker_name":"Jannik EHRICH, Invited by Prof. Massimiliano ESPOSITO","event_speaker_link":"","event_is_online":false,"event_location":"Campus Limpertsberg, B\u00e2timent des Sciences, Room BS 2.04","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 Seminar: Stochastic thermodynamics with hidden degrees of freedom - FSTM events I Uni.lu<\/title>\n<meta name=\"description\" content=\"Stochastic Thermodynamics allows the definition of heat and work for microscopic systems far from thermodynamic equilibrium\u00a0 from observations of their\" \/>\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-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Physics Seminar: Stochastic thermodynamics with hidden degrees of freedom\" \/>\n<meta property=\"og:description\" content=\"Stochastic Thermodynamics allows the definition of heat and work for microscopic systems far from thermodynamic equilibrium\u00a0 from observations of their\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/\" \/>\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-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/\",\"url\":\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/\",\"name\":\"Physics Seminar: Stochastic thermodynamics with hidden degrees of freedom - FSTM events I Uni.lu\",\"isPartOf\":{\"@id\":\"https:\/\/www.uni.lu\/fstm-en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2019\/11\/physics_seminar_stochastic_thermodynamics_with_hidden_degrees_of_freedom.jpg\",\"datePublished\":\"2019-11-26T12:36:10+00:00\",\"dateModified\":\"2019-11-26T12:36:10+00:00\",\"description\":\"Stochastic Thermodynamics allows the definition of heat and work for microscopic systems far from thermodynamic equilibrium\u00a0 from observations of their\",\"breadcrumb\":{\"@id\":\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/#primaryimage\",\"url\":\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2019\/11\/physics_seminar_stochastic_thermodynamics_with_hidden_degrees_of_freedom.jpg\",\"contentUrl\":\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2019\/11\/physics_seminar_stochastic_thermodynamics_with_hidden_degrees_of_freedom.jpg\",\"width\":800,\"height\":600},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.uni.lu\/en\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Faculty of Science, Technology and Medicine\",\"item\":\"https:\/\/www.uni.lu\/fstm-en\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Events\",\"item\":\"https:\/\/www.uni.lu\/fstm-en\/events\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Physics Seminar: Stochastic thermodynamics with hidden degrees of freedom\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.uni.lu\/fstm-en\/#website\",\"url\":\"https:\/\/www.uni.lu\/fstm-en\/\",\"name\":\"FSTM\",\"description\":\"Faculty of Science, Technology and Medicine I Uni.lu\",\"publisher\":{\"@id\":\"https:\/\/www.uni.lu\/fstm-en\/#organization\"},\"alternateName\":\"Faculty of Science, Technology and Medicine I University of Luxembourg\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.uni.lu\/fstm-en\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.uni.lu\/fstm-en\/#organization\",\"name\":\"FSTM - University of Luxembourg I Uni.lu\",\"alternateName\":\"Faculty of Science, Technology and Medicine\",\"url\":\"https:\/\/www.uni.lu\/fstm-en\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/www.uni.lu\/fstm-en\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2026\/03\/03111650\/FSTM_SM-Profile_1600x1600px-scaled.jpg\",\"contentUrl\":\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2026\/03\/03111650\/FSTM_SM-Profile_1600x1600px-scaled.jpg\",\"width\":2560,\"height\":2560,\"caption\":\"FSTM - University of Luxembourg I Uni.lu\"},\"image\":{\"@id\":\"https:\/\/www.uni.lu\/fstm-en\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/fstm.uni.lu\/\",\"https:\/\/www.linkedin.com\/showcase\/fstm-uni-lu\"]}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Physics Seminar: Stochastic thermodynamics with hidden degrees of freedom - FSTM events I Uni.lu","description":"Stochastic Thermodynamics allows the definition of heat and work for microscopic systems far from thermodynamic equilibrium\u00a0 from observations of their","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/","og_locale":"en_GB","og_type":"article","og_title":"Physics Seminar: Stochastic thermodynamics with hidden degrees of freedom","og_description":"Stochastic Thermodynamics allows the definition of heat and work for microscopic systems far from thermodynamic equilibrium\u00a0 from observations of their","og_url":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/","og_site_name":"FSTM EN","article_publisher":"https:\/\/www.facebook.com\/fstm.uni.lu\/","og_image":[{"width":2560,"height":2560,"url":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2026\/03\/03111650\/FSTM_SM-Profile_1600x1600px-scaled.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Estimated reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/","url":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/","name":"Physics Seminar: Stochastic thermodynamics with hidden degrees of freedom - FSTM events I Uni.lu","isPartOf":{"@id":"https:\/\/www.uni.lu\/fstm-en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/#primaryimage"},"image":{"@id":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/#primaryimage"},"thumbnailUrl":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2019\/11\/physics_seminar_stochastic_thermodynamics_with_hidden_degrees_of_freedom.jpg","datePublished":"2019-11-26T12:36:10+00:00","dateModified":"2019-11-26T12:36:10+00:00","description":"Stochastic Thermodynamics allows the definition of heat and work for microscopic systems far from thermodynamic equilibrium\u00a0 from observations of their","breadcrumb":{"@id":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/#primaryimage","url":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2019\/11\/physics_seminar_stochastic_thermodynamics_with_hidden_degrees_of_freedom.jpg","contentUrl":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2019\/11\/physics_seminar_stochastic_thermodynamics_with_hidden_degrees_of_freedom.jpg","width":800,"height":600},{"@type":"BreadcrumbList","@id":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminar-stochastic-thermodynamics-with-hidden-degrees-of-freedom\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.uni.lu\/en"},{"@type":"ListItem","position":2,"name":"Faculty of Science, Technology and Medicine","item":"https:\/\/www.uni.lu\/fstm-en\/"},{"@type":"ListItem","position":3,"name":"Events","item":"https:\/\/www.uni.lu\/fstm-en\/events\/"},{"@type":"ListItem","position":4,"name":"Physics Seminar: Stochastic thermodynamics with hidden degrees of freedom"}]},{"@type":"WebSite","@id":"https:\/\/www.uni.lu\/fstm-en\/#website","url":"https:\/\/www.uni.lu\/fstm-en\/","name":"FSTM","description":"Faculty of Science, Technology and Medicine I Uni.lu","publisher":{"@id":"https:\/\/www.uni.lu\/fstm-en\/#organization"},"alternateName":"Faculty of Science, Technology and Medicine I University of Luxembourg","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.uni.lu\/fstm-en\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/www.uni.lu\/fstm-en\/#organization","name":"FSTM - University of Luxembourg I Uni.lu","alternateName":"Faculty of Science, Technology and Medicine","url":"https:\/\/www.uni.lu\/fstm-en\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.uni.lu\/fstm-en\/#\/schema\/logo\/image\/","url":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2026\/03\/03111650\/FSTM_SM-Profile_1600x1600px-scaled.jpg","contentUrl":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2026\/03\/03111650\/FSTM_SM-Profile_1600x1600px-scaled.jpg","width":2560,"height":2560,"caption":"FSTM - University of Luxembourg I Uni.lu"},"image":{"@id":"https:\/\/www.uni.lu\/fstm-en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/fstm.uni.lu\/","https:\/\/www.linkedin.com\/showcase\/fstm-uni-lu"]}]}},"_links":{"self":[{"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/events\/7270"}],"collection":[{"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/events"}],"about":[{"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/types\/events"}],"replies":[{"embeddable":true,"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/comments?post=7270"}],"version-history":[{"count":0,"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/events\/7270\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/media\/7271"}],"wp:attachment":[{"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/media?parent=7270"}],"wp:term":[{"taxonomy":"events-topic","embeddable":true,"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/events-topic?post=7270"},{"taxonomy":"events-type","embeddable":true,"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/events-type?post=7270"},{"taxonomy":"organisation","embeddable":true,"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/organisation?post=7270"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}