{"id":2815,"date":"2023-04-21T10:18:32","date_gmt":"2023-04-21T01:18:32","guid":{"rendered":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/?post_type=seminar&#038;p=2815"},"modified":"2023-11-20T10:19:15","modified_gmt":"2023-11-20T01:19:15","slug":"how-baryons-appear-in-low-energy-qcd-domain-wall-skyrmion-phase-in-strong-magnetic-fields-2","status":"publish","type":"seminar","link":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/2815\/","title":{"rendered":"How baryons appear in low-energy QCD: Domain-wall Skyrmion phase in strong magnetic fields"},"content":{"rendered":"<p><span style=\"font-size: 14pt;background-color: #99ccff\"><strong>&#8220;<span style=\"color: #333399;background-color: #99ccff\">KMI colloquium&#8221; 31th May (Wed)\u00a0 17\uff1a00 &#8211;<\/span><\/strong><\/span><span style=\"font-size: 14pt;background-color: #99ccff\"><strong><span style=\"color: #333399;background-color: #99ccff\"><br \/>\n<\/span><\/strong><\/span><span style=\"font-size: 12pt\"><span style=\"color: #333333\">Speaker<\/span><span style=\"color: #333399;letter-spacing: 0.8px\">: <span style=\"color: #333333\"><span role=\"presentation\" dir=\"ltr\">Muneto NITTA<\/span><span role=\"presentation\" dir=\"ltr\"> <\/span><span role=\"presentation\" dir=\"ltr\">(<\/span><span role=\"presentation\" dir=\"ltr\">Keio Univ.<\/span><span role=\"presentation\" dir=\"ltr\">)<\/span><\/span><\/span><span style=\"letter-spacing: 0.8px\"><br \/>\n<\/span><\/span><span style=\"font-size: 12pt;letter-spacing: 0.8px\">Title: How baryons appear in low-energy QCD: Domain-wall Skyrmion phase in strong magnetic fields<br \/>\n<\/span><span style=\"font-family: monospace, monospace;font-size: 12pt;letter-spacing: 0.8px\">Place: ES635&amp; ZOOM<\/span><\/p>\n<p>Abstract: Low-energy dynamics of QCD can be described by pion degrees of freedom in terms of the chiral perturbation theory (ChPT). A chiral soliton lattice (CSL), an array of solitons, is the ground state due to the chiral anomaly in the presence of a magnetic field larger than a certain critical value at finite density. Here, we show in a model-independent and fully analytic manner (at the leading order of ChPT) that the CSL phase transits to a domain-wall Skyrmion phase when the chemical potential is larger than the critical value \u03bc<sub>c<\/sub> = 16\u03c0f<sup>2<\/sup><sub>\u03c0<\/sub> \/ 3 m<sub>\u03c0<\/sub> \u223c 1.03 GeV with the pion&#8217;s decay constant f<sub>\u03c0<\/sub> and mass m<sub>\u03c0<\/sub>, which can be regarded as the nuclear saturation density. There spontaneously appear stable two-dimensional Skyrmions or lumps on a soliton surface, which can be viewed as three-dimensional Skyrmions carrying even baryon numbers from the bulk despite no Skyrme term. They behave as superconducting rings with persistent currents due to a charged pion condensation, and areas of the rings&#8217; interiors are quantized. This phase is in the scope of future heavy-ion collider experiments. This talk is based on arXiv:2304.02940 [hep-ph] in collaboration with M. Eto and K. Nishimura.<\/p>\n<p><a href=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2023\/04\/KMI-Colloquim_Nitta_20230531_poster.jpg\"> <img decoding=\"async\" src=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2023\/04\/KMI-Colloquim_Nitta_20230531_poster-212x300.jpg\" alt=\"\" width=\"212\" class=\"alignnone size-medium wp-image-2813\" srcset=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2023\/04\/KMI-Colloquim_Nitta_20230531_poster-212x300.jpg 212w, https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2023\/04\/KMI-Colloquim_Nitta_20230531_poster-724x1024.jpg 724w, https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2023\/04\/KMI-Colloquim_Nitta_20230531_poster-768x1086.jpg 768w, https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2023\/04\/KMI-Colloquim_Nitta_20230531_poster.jpg 842w\" sizes=\"(max-width: 212px) 100vw, 212px\" \/> <\/a><\/p>\n","protected":false},"featured_media":0,"template":"","tags":[],"seminar_category":[55],"acf":{"s_now_accepting":true,"s_date_order":"2023-05-31 17:00:00","s_date_end":null,"s_date_text":"Wednesday, May 31th, 2023","s_text":"Muneto NITTA (Keio Univ.)","s_place":"ES635\uff06ZOOM","s_place_other":"","s_categoryother":"","s_poster":"","s_poster2":"","s_slide":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How baryons appear in low-energy QCD: Domain-wall Skyrmion phase in strong magnetic fields - KMI - Nagoya University<\/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.kmi.nagoya-u.ac.jp\/eng\/seminar\/2815\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How baryons appear in low-energy QCD: Domain-wall Skyrmion phase in strong magnetic fields - KMI - Nagoya University\" \/>\n<meta property=\"og:description\" content=\"&#8220;KMI colloquium&#8221; 31th May (Wed)\u00a0 17\uff1a00 &#8211; Speaker: Muneto NITTA (Keio Univ.) Title: How baryons appear in low-energy QCD: Domain-wall Skyrmion phase in strong magnetic fields Place: ES635&amp; ZOOM Abstract: Low-energy dynamics of QCD can be described by pion degrees of freedom in terms of the chiral perturbation theory (ChPT). A chiral soliton lattice (CSL), an array of solitons, is the ground state due to the chiral anomaly in the presence of a magnetic field larger than a certain critical &hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/2815\/\" \/>\n<meta property=\"og:site_name\" content=\"KMI - Nagoya University\" \/>\n<meta property=\"article:modified_time\" content=\"2023-11-20T01:19:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2023\/04\/KMI-Colloquim_Nitta_20230531_poster-212x300.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. 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.kmi.nagoya-u.ac.jp\/eng\/seminar\/2815\/\",\"url\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/2815\/\",\"name\":\"How baryons appear in low-energy QCD: Domain-wall Skyrmion phase in strong magnetic fields - KMI - Nagoya University\",\"isPartOf\":{\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/2815\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/2815\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2023\/04\/KMI-Colloquim_Nitta_20230531_poster-212x300.jpg\",\"datePublished\":\"2023-04-21T01:18:32+00:00\",\"dateModified\":\"2023-11-20T01:19:15+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/2815\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/2815\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/2815\/#primaryimage\",\"url\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2023\/04\/KMI-Colloquim_Nitta_20230531_poster.jpg\",\"contentUrl\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2023\/04\/KMI-Colloquim_Nitta_20230531_poster.jpg\",\"width\":842,\"height\":1191},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/2815\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Seminars\",\"item\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"How baryons appear in low-energy QCD: Domain-wall Skyrmion phase in strong magnetic fields\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/#website\",\"url\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/\",\"name\":\"KMI - Nagoya University\",\"description\":\"Nagoya University: Kobayashi-Maskawa Institute for the Origin of Particles and the Universe (KMI)\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"How baryons appear in low-energy QCD: Domain-wall Skyrmion phase in strong magnetic fields - KMI - Nagoya University","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.kmi.nagoya-u.ac.jp\/eng\/seminar\/2815\/","og_locale":"en_US","og_type":"article","og_title":"How baryons appear in low-energy QCD: Domain-wall Skyrmion phase in strong magnetic fields - KMI - Nagoya University","og_description":"&#8220;KMI colloquium&#8221; 31th May (Wed)\u00a0 17\uff1a00 &#8211; Speaker: Muneto NITTA (Keio Univ.) 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