{"id":10826,"date":"2017-08-10T07:50:31","date_gmt":"2017-08-10T12:50:31","guid":{"rendered":"http:\/\/huewhite.com\/umb\/?p=10826"},"modified":"2017-08-10T07:50:31","modified_gmt":"2017-08-10T12:50:31","slug":"word-of-the-day-196","status":"publish","type":"post","link":"https:\/\/huewhite.com\/umb\/2017\/08\/10\/word-of-the-day-196\/","title":{"rendered":"Word Of The Day"},"content":{"rendered":"<p><em>amplituhedron<\/em>:<\/p>\n<blockquote><p>An <b>amplituhedron<\/b> is a geometric structure introduced in 2013 by Nima Arkani-Hamed and Jaroslav Trnka. It enables simplified calculation of <a title=\"Particle\" href=\"https:\/\/en.wikipedia.org\/wiki\/Particle\">particle<\/a> interactions in some <a class=\"mw-redirect\" title=\"Quantum field\" href=\"https:\/\/en.wikipedia.org\/wiki\/Quantum_field\">quantum field<\/a> theories. In planar <a title=\"N = 4 supersymmetric Yang\u2013Mills theory\" href=\"https:\/\/en.wikipedia.org\/wiki\/N_%3D_4_supersymmetric_Yang%E2%80%93Mills_theory\"><i>N<\/i> = 4 supersymmetric Yang\u2013Mills theory<\/a>, also equivalent to the perturbative <a title=\"Topological string theory\" href=\"https:\/\/en.wikipedia.org\/wiki\/Topological_string_theory#B-model\">topological B model string theory<\/a> in <a title=\"Twistor space\" href=\"https:\/\/en.wikipedia.org\/wiki\/Twistor_space\">twistor space<\/a>, an amplituhedron is defined as a mathematical space known as the positive <a title=\"Grassmannian\" href=\"https:\/\/en.wikipedia.org\/wiki\/Grassmannian\">Grassmannian<\/a>.<em> [<a href=\"https:\/\/en.wikipedia.org\/wiki\/Amplituhedron\" target=\"_blank\" rel=\"noopener\"><strong>Wikipedia<\/strong><\/a>]<\/em><\/p><\/blockquote>\n<p>Noted in &#8220;<a href=\"https:\/\/www.newscientist.com\/article\/mg23531360-300-the-geometry-that-could-reveal-the-true-nature-of-spacetime\/\" target=\"_blank\" rel=\"noopener\"><em>The geometry that could reveal the true nature of space-time<\/em><\/a>,&#8221; <span class=\"author\">Anil Ananthaswamy<\/span>, <em><strong>NewScientist<\/strong><\/em> (29 July 2017, paywall):<\/p>\n<blockquote>\n<div id=\"attachment_10849\" style=\"width: 315px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/i0.wp.com\/huewhite.com\/umb\/wp-content\/uploads\/2017\/08\/amplituhedron-0b.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-10849\" class=\"wp-image-10849\" src=\"https:\/\/i0.wp.com\/huewhite.com\/umb\/wp-content\/uploads\/2017\/08\/amplituhedron-0b.jpg?resize=305%2C254&#038;ssl=1\" alt=\"\" width=\"305\" height=\"254\" srcset=\"https:\/\/i0.wp.com\/huewhite.com\/umb\/wp-content\/uploads\/2017\/08\/amplituhedron-0b.jpg?w=600&amp;ssl=1 600w, https:\/\/i0.wp.com\/huewhite.com\/umb\/wp-content\/uploads\/2017\/08\/amplituhedron-0b.jpg?resize=300%2C250&amp;ssl=1 300w, https:\/\/i0.wp.com\/huewhite.com\/umb\/wp-content\/uploads\/2017\/08\/amplituhedron-0b.jpg?resize=180%2C150&amp;ssl=1 180w, https:\/\/i0.wp.com\/huewhite.com\/umb\/wp-content\/uploads\/2017\/08\/amplituhedron-0b.jpg?resize=150%2C125&amp;ssl=1 150w\" sizes=\"auto, (max-width: 305px) 100vw, 305px\" \/><\/a><p id=\"caption-attachment-10849\" class=\"wp-caption-text\">Source: <a href=\"http:\/\/theoryofeverything.org\/theToE\/tags\/amplituhedron\/\" target=\"_blank\" rel=\"noopener\"><strong>Theory Of Everything<\/strong><\/a><\/p><\/div>\n<p>It took <a href=\"https:\/\/www.ias.edu\/scholars\/arkani-hamed\">Nima Arkani-Hamed<\/a> and his team at the Institute of Advanced Studies (IAS) in New Jersey, including his then students <a href=\"http:\/\/physics.ucdavis.edu\/people\/faculty\/jaroslav-trnka\">Jaroslav Trnka<\/a> and Bourjaily, to join the dots. Building on the seemingly esoteric work of pure mathematicians, the team arrived at a mind-boggling conclusion: the scattering amplitude calculated with the BCFW technique corresponds beautifully to the volume of a new mathematical object. They gave a name to this multi-dimensional concatenation of polyhedrons: the amplituhedron.<\/p><\/blockquote>\n<p>Now go out and drop this in casual conversation.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>amplituhedron: An amplituhedron is a geometric structure introduced in 2013 by Nima Arkani-Hamed and Jaroslav Trnka. It enables simplified calculation of particle interactions in some quantum field theories. In planar N = 4 supersymmetric Yang\u2013Mills theory, also equivalent to the perturbative topological B model string theory in twistor space, an \u2026 <a class=\"continue-reading-link\" href=\"https:\/\/huewhite.com\/umb\/2017\/08\/10\/word-of-the-day-196\/\"> Continue reading <span class=\"meta-nav\">&rarr; <\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-10826","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/posts\/10826","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/comments?post=10826"}],"version-history":[{"count":3,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/posts\/10826\/revisions"}],"predecessor-version":[{"id":10851,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/posts\/10826\/revisions\/10851"}],"wp:attachment":[{"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/media?parent=10826"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/categories?post=10826"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/tags?post=10826"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}