{"id":2422,"date":"2026-03-04T09:19:45","date_gmt":"2026-03-04T09:19:45","guid":{"rendered":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/?p=2422"},"modified":"2026-03-30T16:14:46","modified_gmt":"2026-03-30T16:14:46","slug":"invited-talk-by-ashley-beguin","status":"publish","type":"post","link":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/","title":{"rendered":"New developments for Large Scale Atom Interferometers"},"content":{"rendered":"\n<!--more-->\n\n\n\n<p><strong><u>.<\/u><\/strong><\/p>\n\n\n\n<p><strong><u>B\u00e9guin A<\/u><\/strong><strong>.&nbsp;<sup>(4)<\/sup>, Rodzinka T.<sup>&nbsp;(1)<\/sup>,&nbsp;&nbsp;Dionis E.<sup>&nbsp;(2)<\/sup>, Calmels L.<sup>&nbsp;(1)<\/sup>, Beldjoudi S.<sup>&nbsp;(1)<\/sup>, Minjeong K.<sup>&nbsp;(3)<\/sup>, Curti J.<sup>&nbsp;(3)<\/sup>, Gu\u00e9ry-Odelin D.<sup>&nbsp;(1)<\/sup>, Sugny D.<sup>(2)<\/sup>, Allard B.<sup>&nbsp;(1)<\/sup>, Gauguet A.<sup>&nbsp;(1)<\/sup>, and Kasevich M.<sup>&nbsp;(3)<\/sup><\/strong><\/p>\n\n\n\n<p><em><sup>(1)<\/sup><\/em><em>&nbsp;&nbsp;Laboratoire Collisions Agr\u00e9gats et R\u00e9activit\u00e9, France<\/em><\/p>\n\n\n\n<p><em><sup>(2)<\/sup><\/em><em>&nbsp;&nbsp;ICB Institut Carnot de Bourgogne, France<\/em><\/p>\n\n\n\n<p><em><sup>(3)<\/sup><\/em><em>&nbsp;&nbsp;Department of Physics, Stanford University, USA<\/em><\/p>\n\n\n\n<p><em><sup>(4)<\/sup><\/em><em>&nbsp;&nbsp;LTE, Observatoire de Paris, Universit\u00e9 PSL, Sorbonne Universit\u00e9, Universit\u00e9 de Lille, LNE, CNRS, France<\/em><\/p>\n\n\n\n<p>ashley.beguin@obspm.fr<\/p>\n\n\n\n<p>Efficient control of atomic coherence in cold atom systems has established atom interferometry as a powerful tool for quantum sensing and precision measurements. One of the key challenges today is scaling these interferometers&nbsp;to much larger dimensions. In particular, ongoing international efforts targeting gravitational wave detection and dark matter exploration aim to reach momentum separations of several thousand photon recoils between the interferometer arms [1]. Achieving such regimes calls for the development of new experimental techniques required by the next generation of atom interferometers.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"753\" data-attachment-id=\"2520\" data-permalink=\"https:\/\/www.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/ashley-beguin-figure-1\/\" data-orig-file=\"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-figure-1.png\" data-orig-size=\"1652,1214\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Ashley B\u00e9guin &amp;#8211; figure 1\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-figure-1-1024x753.png\" src=\"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-figure-1-1024x753.png\" alt=\"\" class=\"wp-image-2520\" style=\"aspect-ratio:1.3599287134142162;width:406px;height:auto\" srcset=\"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-figure-1-1024x753.png 1024w, https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-figure-1-300x220.png 300w, https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-figure-1-150x110.png 150w, https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-figure-1-768x564.png 768w, https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-figure-1-1536x1129.png 1536w, https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-figure-1.png 1652w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>We present a novel beam-splitting approach based on the stroboscopic stabilization of quantum states in an accelerated optical lattice. This technique relies on Floquet formalism and optimal control theory to allow coherent acceleration of a Bose\u2013Einstein condensate in an optical lattice. This method has enabled the experimental demonstration of an atom interferometer achieving a record total momentum transfer of 600 photon recoils (Fig 1) [2]. The performance of this experiment is currently limited only by identified technical constraints, in particular the finite size of the experimental apparatus and spontaneous emission during the interaction between the optical lattice and the atoms, suggesting that the fundamental limits of these acceleration sequences [3] should be within reach.\u00a0This method could realized its full potential in large-scale atom interferometers, such as the 10-meter-tall rubidium fountain at Stanford, enabling access to new regimes and advancing efforts toward achieving macroscopic wave-packet separation between the interferometer arms, with promising applications in precision metrology.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"562\" data-attachment-id=\"2521\" data-permalink=\"https:\/\/www.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/ashley-beguin-figure-2-interference-fringes-for-a-guided-interferometer\/\" data-orig-file=\"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-Figure-2-Interference-fringes-for-a-guided-interferometer.png\" data-orig-size=\"1986,1090\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Ashley B\u00e9guin &amp;#8212; Figure 2 &amp;#8211; Interference fringes for a guided interferometer.\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-Figure-2-Interference-fringes-for-a-guided-interferometer-1024x562.png\" src=\"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-Figure-2-Interference-fringes-for-a-guided-interferometer-1024x562.png\" alt=\"\" class=\"wp-image-2521\" style=\"aspect-ratio:1.8221058915369426;width:469px;height:auto\" srcset=\"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-Figure-2-Interference-fringes-for-a-guided-interferometer-1024x562.png 1024w, https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-Figure-2-Interference-fringes-for-a-guided-interferometer-300x165.png 300w, https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-Figure-2-Interference-fringes-for-a-guided-interferometer-150x82.png 150w, https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-Figure-2-Interference-fringes-for-a-guided-interferometer-768x422.png 768w, https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-Figure-2-Interference-fringes-for-a-guided-interferometer-1536x843.png 1536w, https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/03\/Ashley-Beguin-Figure-2-Interference-fringes-for-a-guided-interferometer.png 1986w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Such large-scale interferometers are, however,<br>increasingly sensitive to systematic phase shifts,<br>which can result from the transverse expansion of<br>the atomic cloud. Controlling this transverse<br>motion is therefore crucial to maintain the<br>interferometer\u2019s performance<strong>.<\/strong>\u00a0Guided atom interferometers offer a promising approach to mitigate these systematics. In this configuration, atoms are confined within a vertical optical beam throughout the interferometer sequence, limiting their transverse expansion even during long interrogation times. Consequently, the required optical lattice beam size and laser power can be reduced. Moreover, this setup could help to suppress some systematic effects, including wavefront distortions, inhomogeneities in the Bragg laser beams, or Coriolis-induced phase shifts arising from the transverse velocity of the atomic cloud.\u00a0<\/p>\n\n\n\n<p>These developments pave the way toward a new generation of large-scale atom interferometers with enhanced sensitivity, enabling novel tests of fundamental physics tests.<\/p>\n\n\n\n<p>[1] A.Abdalla et al, arXiv&nbsp;: 2412.14960 (2024).<\/p>\n\n\n\n<p>[2] T.Rodzinka et al, NatComm,&nbsp;<strong>15<\/strong>, 10281 (2024).<\/p>\n\n\n\n<p>[3] A. Alibabaei et al., arXiv:2602.00365 (2026).&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":2238,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[52],"tags":[209],"class_list":["post-2422","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-invited-talk","tag-beguin-ashley"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>New developments for Large Scale Atom Interferometers - FOMO-2026<\/title>\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.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"New developments for Large Scale Atom Interferometers - FOMO-2026\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/\" \/>\n<meta property=\"og:site_name\" content=\"FOMO-2026\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-04T09:19:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-30T16:14:46+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/02\/Ashley-Beguin.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"295\" \/>\n\t<meta property=\"og:image:height\" content=\"295\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"wvk_3vn943\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"wvk_3vn943\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/invited-talk-by-ashley-beguin\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/invited-talk-by-ashley-beguin\\\/\"},\"author\":{\"name\":\"wvk_3vn943\",\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/#\\\/schema\\\/person\\\/b7b2c57e8ef1e0424a14806159170c04\"},\"headline\":\"New developments for Large Scale Atom Interferometers\",\"datePublished\":\"2026-03-04T09:19:45+00:00\",\"dateModified\":\"2026-03-30T16:14:46+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/invited-talk-by-ashley-beguin\\\/\"},\"wordCount\":484,\"publisher\":{\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/invited-talk-by-ashley-beguin\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/Ashley-Beguin.jpeg\",\"keywords\":[\"B\u00e9guin - Ashley\"],\"articleSection\":[\"Invited Talk\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/invited-talk-by-ashley-beguin\\\/\",\"url\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/invited-talk-by-ashley-beguin\\\/\",\"name\":\"New developments for Large Scale Atom Interferometers - FOMO-2026\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/invited-talk-by-ashley-beguin\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/invited-talk-by-ashley-beguin\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/Ashley-Beguin.jpeg\",\"datePublished\":\"2026-03-04T09:19:45+00:00\",\"dateModified\":\"2026-03-30T16:14:46+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/invited-talk-by-ashley-beguin\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/invited-talk-by-ashley-beguin\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/invited-talk-by-ashley-beguin\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/Ashley-Beguin.jpeg\",\"contentUrl\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/Ashley-Beguin.jpeg\",\"width\":295,\"height\":295},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/invited-talk-by-ashley-beguin\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"New developments for Large Scale Atom Interferometers\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/#website\",\"url\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/\",\"name\":\"FOMO-2026\",\"description\":\"imagine matterwaves\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/#organization\"},\"alternateName\":\"FOMO2026\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/#organization\",\"name\":\"FOMO-2026\",\"url\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/FOMO2026-transp-small.png\",\"contentUrl\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/FOMO2026-transp-small.png\",\"width\":200,\"height\":200,\"caption\":\"FOMO-2026\"},\"image\":{\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/#\\\/schema\\\/person\\\/b7b2c57e8ef1e0424a14806159170c04\",\"name\":\"wvk_3vn943\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/562481f667df1ec75199ca7e8d9bfd8bbcd7715c401c8513cd8e049c5b459271?s=96&d=blank&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/562481f667df1ec75199ca7e8d9bfd8bbcd7715c401c8513cd8e049c5b459271?s=96&d=blank&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/562481f667df1ec75199ca7e8d9bfd8bbcd7715c401c8513cd8e049c5b459271?s=96&d=blank&r=g\",\"caption\":\"wvk_3vn943\"},\"sameAs\":[\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\"],\"url\":\"https:\\\/\\\/www.matterwaveoptics.eu\\\/fomo2026\\\/author\\\/wvk_3vn943\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"New developments for Large Scale Atom Interferometers - FOMO-2026","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.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/","og_locale":"en_US","og_type":"article","og_title":"New developments for Large Scale Atom Interferometers - FOMO-2026","og_url":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/","og_site_name":"FOMO-2026","article_published_time":"2026-03-04T09:19:45+00:00","article_modified_time":"2026-03-30T16:14:46+00:00","og_image":[{"width":295,"height":295,"url":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/02\/Ashley-Beguin.jpeg","type":"image\/jpeg"}],"author":"wvk_3vn943","twitter_card":"summary_large_image","twitter_misc":{"Written by":"wvk_3vn943","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/#article","isPartOf":{"@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/"},"author":{"name":"wvk_3vn943","@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/#\/schema\/person\/b7b2c57e8ef1e0424a14806159170c04"},"headline":"New developments for Large Scale Atom Interferometers","datePublished":"2026-03-04T09:19:45+00:00","dateModified":"2026-03-30T16:14:46+00:00","mainEntityOfPage":{"@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/"},"wordCount":484,"publisher":{"@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/#organization"},"image":{"@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/#primaryimage"},"thumbnailUrl":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/02\/Ashley-Beguin.jpeg","keywords":["B\u00e9guin - Ashley"],"articleSection":["Invited Talk"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/","url":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/","name":"New developments for Large Scale Atom Interferometers - FOMO-2026","isPartOf":{"@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/#primaryimage"},"image":{"@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/#primaryimage"},"thumbnailUrl":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/02\/Ashley-Beguin.jpeg","datePublished":"2026-03-04T09:19:45+00:00","dateModified":"2026-03-30T16:14:46+00:00","breadcrumb":{"@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/#primaryimage","url":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/02\/Ashley-Beguin.jpeg","contentUrl":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/02\/Ashley-Beguin.jpeg","width":295,"height":295},{"@type":"BreadcrumbList","@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/invited-talk-by-ashley-beguin\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/"},{"@type":"ListItem","position":2,"name":"New developments for Large Scale Atom Interferometers"}]},{"@type":"WebSite","@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/#website","url":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/","name":"FOMO-2026","description":"imagine matterwaves","publisher":{"@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/#organization"},"alternateName":"FOMO2026","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/#organization","name":"FOMO-2026","url":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/#\/schema\/logo\/image\/","url":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2025\/09\/FOMO2026-transp-small.png","contentUrl":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2025\/09\/FOMO2026-transp-small.png","width":200,"height":200,"caption":"FOMO-2026"},"image":{"@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/#\/schema\/person\/b7b2c57e8ef1e0424a14806159170c04","name":"wvk_3vn943","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/562481f667df1ec75199ca7e8d9bfd8bbcd7715c401c8513cd8e049c5b459271?s=96&d=blank&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/562481f667df1ec75199ca7e8d9bfd8bbcd7715c401c8513cd8e049c5b459271?s=96&d=blank&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/562481f667df1ec75199ca7e8d9bfd8bbcd7715c401c8513cd8e049c5b459271?s=96&d=blank&r=g","caption":"wvk_3vn943"},"sameAs":["https:\/\/www.matterwaveoptics.eu\/fomo2026"],"url":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/author\/wvk_3vn943\/"}]}},"jetpack_featured_media_url":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/02\/Ashley-Beguin.jpeg","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":2237,"url":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/ashley-beguin\/","url_meta":{"origin":2422,"position":0},"title":"Ashley B\u00e9guin","author":"wvk_3vn943","date":"February 23, 2026","format":false,"excerpt":"CNRS Research Scientist at the Observatory of Paris","rel":"","context":"In &quot;Invited Speaker&quot;","block_context":{"text":"Invited Speaker","link":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/category\/conference\/speakers\/invited-speaker\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/02\/Ashley-Beguin.jpeg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":2229,"url":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/fabio-di-pumpo\/","url_meta":{"origin":2422,"position":1},"title":"Fabio\u00a0Di Pumpo","author":"wvk_3vn943","date":"February 23, 2026","format":false,"excerpt":"Research Scientist, University of Ulm Fabio Di Pumpo is a postdoctoral researcher at Ulm University. His research focuses on effective descriptions for composite quantum systems as fundamental-physics sensors derived from first principles, covering e.g. gravitational-wave and dark-matter detection with atomic interferometers.He is currently involved in the formation of the Terrestrial\u2026","rel":"","context":"In &quot;Invited Speaker&quot;","block_context":{"text":"Invited Speaker","link":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/category\/conference\/speakers\/invited-speaker\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.matterwaveoptics.eu\/fomo2026\/wp-content\/uploads\/2026\/02\/Fabio-Di-Pumpo.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-json\/wp\/v2\/posts\/2422","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-json\/wp\/v2\/comments?post=2422"}],"version-history":[{"count":3,"href":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-json\/wp\/v2\/posts\/2422\/revisions"}],"predecessor-version":[{"id":2523,"href":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-json\/wp\/v2\/posts\/2422\/revisions\/2523"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-json\/wp\/v2\/media\/2238"}],"wp:attachment":[{"href":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-json\/wp\/v2\/media?parent=2422"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-json\/wp\/v2\/categories?post=2422"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.matterwaveoptics.eu\/fomo2026\/wp-json\/wp\/v2\/tags?post=2422"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}