{"id":533,"date":"2019-03-21T16:55:00","date_gmt":"2019-03-21T15:55:00","guid":{"rendered":"https:\/\/gqm.lpl.univ-paris13.fr\/?p=533"},"modified":"2025-11-08T14:25:57","modified_gmt":"2025-11-08T13:25:57","slug":"oscillations-and-decay-of-superfluid-currents-in-a-one-dimensional-bose-gas-on-a-ring","status":"publish","type":"post","link":"https:\/\/gqm.lpl.univ-paris13.fr\/index.php\/2019\/03\/21\/oscillations-and-decay-of-superfluid-currents-in-a-one-dimensional-bose-gas-on-a-ring\/","title":{"rendered":"Oscillations and decay of superfluid currents in a one-dimensional Bose gas on a ring"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p>Depending on interaction strength and temperature, we identify various dynamical regimes where the current oscillates, is self-trapped, or decays with time.<\/p>\n\n\n\n<p>We show that the dynamics is captured by a dual Josephson model and involve phase slips of thermal or quantum nature.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image aligncenter size-full has-custom-border is-style-rounded wp-duotone-unset-1\" id=\"wp-block-themeisle-blocks-image-a1e5b0c8\" style=\"margin-top:var(--wp--preset--spacing--20);margin-right:var(--wp--preset--spacing--20);margin-bottom:var(--wp--preset--spacing--20);margin-left:var(--wp--preset--spacing--20)\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/gqm.lpl.univ-paris13.fr\/wp-content\/uploads\/2025\/11\/Article-Oscillation-decay-superfluid-current-084028.svg\" alt=\"\" class=\"wp-image-1612\" style=\"border-style:none;border-width:0px;border-radius:10px\"\/><figcaption class=\"wp-element-caption\">(a) Sketch of the quench protocol: a 1D Bose gas on a ring in presence of a localized barrier.\n(b) Energy landscape of the homogeneous 1D Bose gas on a ring.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>We demonstrate coherent manipulation of the nuclear degrees of freedom of ultracold ground-state strontium-87 atoms, thus We study the time evolution of a supercurrent imprinted on a one-dimensional ring of interacting bosons in the presence of a defect created by a localized barrier.<br \/>\n<a href=\"https:\/\/doi.org\/10.48550\/arXiv.1903.09229\">arXiv:1903.09229 (2019)<\/a>  \/  <a href=\"https:\/\/doi.org\/10.1103\/PhysRevLett.123.195301\">Phys. Rev. Lett. 123, 195301 (2019)<\/a><\/p>\n","protected":false},"author":3,"featured_media":1612,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[18,129],"tags":[133,145,141,44,142],"class_list":["post-533","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-article","category-theory","tag-anna-minguzzi","tag-helene-perrin","tag-juan-polo","tag-paolo-pedri","tag-romain-dubessy"],"blocksy_meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Oscillations and decay of superfluid currents in a one-dimensional Bose gas on a ring - Magnetic Quantum Gases<\/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:\/\/gqm.lpl.univ-paris13.fr\/index.php\/2019\/03\/21\/oscillations-and-decay-of-superfluid-currents-in-a-one-dimensional-bose-gas-on-a-ring\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Oscillations and decay of superfluid currents in a one-dimensional Bose gas on a ring - Magnetic Quantum Gases\" \/>\n<meta property=\"og:description\" content=\"We demonstrate coherent manipulation of the nuclear degrees of freedom of ultracold ground-state strontium-87 atoms, thus We study the time evolution of a supercurrent imprinted on a one-dimensional ring of interacting bosons in the presence of a defect created by a localized barrier. arXiv:1903.09229 (2019) \/ Phys. Rev. Lett. 123, 195301 (2019)\" \/>\n<meta property=\"og:url\" content=\"https:\/\/gqm.lpl.univ-paris13.fr\/index.php\/2019\/03\/21\/oscillations-and-decay-of-superfluid-currents-in-a-one-dimensional-bose-gas-on-a-ring\/\" \/>\n<meta property=\"og:site_name\" content=\"Magnetic Quantum Gases\" \/>\n<meta property=\"article:published_time\" content=\"2019-03-21T15:55:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-11-08T13:25:57+00:00\" \/>\n<meta name=\"author\" content=\"Benjamin PASQUIOU\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin PASQUIOU\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/index.php\\\/2019\\\/03\\\/21\\\/oscillations-and-decay-of-superfluid-currents-in-a-one-dimensional-bose-gas-on-a-ring\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/index.php\\\/2019\\\/03\\\/21\\\/oscillations-and-decay-of-superfluid-currents-in-a-one-dimensional-bose-gas-on-a-ring\\\/\"},\"author\":{\"name\":\"Benjamin PASQUIOU\",\"@id\":\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/#\\\/schema\\\/person\\\/edd1441f419c30858a44ed007fc1fc79\"},\"headline\":\"Oscillations and decay of superfluid currents in a one-dimensional Bose gas on a ring\",\"datePublished\":\"2019-03-21T15:55:00+00:00\",\"dateModified\":\"2025-11-08T13:25:57+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/index.php\\\/2019\\\/03\\\/21\\\/oscillations-and-decay-of-superfluid-currents-in-a-one-dimensional-bose-gas-on-a-ring\\\/\"},\"wordCount\":87,\"publisher\":{\"@id\":\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/index.php\\\/2019\\\/03\\\/21\\\/oscillations-and-decay-of-superfluid-currents-in-a-one-dimensional-bose-gas-on-a-ring\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/Article-Oscillation-decay-superfluid-current-084028.svg\",\"keywords\":[\"Anna Minguzzi\",\"Helene Perrin\",\"Juan Polo\",\"Paolo Pedri\",\"Romain Dubessy\"],\"articleSection\":[\"Article\",\"Theory\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/index.php\\\/2019\\\/03\\\/21\\\/oscillations-and-decay-of-superfluid-currents-in-a-one-dimensional-bose-gas-on-a-ring\\\/\",\"url\":\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/index.php\\\/2019\\\/03\\\/21\\\/oscillations-and-decay-of-superfluid-currents-in-a-one-dimensional-bose-gas-on-a-ring\\\/\",\"name\":\"Oscillations and decay of superfluid currents in a one-dimensional Bose gas on a ring - Magnetic Quantum Gases\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/index.php\\\/2019\\\/03\\\/21\\\/oscillations-and-decay-of-superfluid-currents-in-a-one-dimensional-bose-gas-on-a-ring\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/index.php\\\/2019\\\/03\\\/21\\\/oscillations-and-decay-of-superfluid-currents-in-a-one-dimensional-bose-gas-on-a-ring\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/Article-Oscillation-decay-superfluid-current-084028.svg\",\"datePublished\":\"2019-03-21T15:55:00+00:00\",\"dateModified\":\"2025-11-08T13:25:57+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/index.php\\\/2019\\\/03\\\/21\\\/oscillations-and-decay-of-superfluid-currents-in-a-one-dimensional-bose-gas-on-a-ring\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/index.php\\\/2019\\\/03\\\/21\\\/oscillations-and-decay-of-superfluid-currents-in-a-one-dimensional-bose-gas-on-a-ring\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/index.php\\\/2019\\\/03\\\/21\\\/oscillations-and-decay-of-superfluid-currents-in-a-one-dimensional-bose-gas-on-a-ring\\\/#primaryimage\",\"url\":\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/Article-Oscillation-decay-superfluid-current-084028.svg\",\"contentUrl\":\"https:\\\/\\\/gqm.lpl.univ-paris13.fr\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/Article-Oscillation-decay-superfluid-current-084028.svg\",\"width\":300,\"height\":300,\"caption\":\"(a) Sketch of the quench protocol: a 1D Bose gas on a ring in presence of a localized barrier. 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