{"id":51220,"date":"2023-09-04T15:30:24","date_gmt":"2023-09-04T13:30:24","guid":{"rendered":"http:\/\/www.erbium.at\/FF\/?p=51220"},"modified":"2024-02-22T10:38:02","modified_gmt":"2024-02-22T09:38:02","slug":"a-thouless-pump-with-dipolar-interactions","status":"publish","type":"post","link":"https:\/\/www.erbium.at\/FF\/a-thouless-pump-with-dipolar-interactions\/","title":{"rendered":"A Thouless pump with dipolar interactions"},"content":{"rendered":"\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large is-resized\"><a href=\"http:\/\/www.erbium.at\/FF\/wp-content\/uploads\/2023\/09\/Thoulesspumpfigure_300x232.png\"><img loading=\"lazy\" class=\" wp-image-50449 aligncenter\" src=\"http:\/\/www.erbium.at\/FF\/wp-content\/uploads\/2023\/09\/Thoulesspumpfigure.png\" alt=\"\" width=\"932\" height=\"722\" \/><\/a><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Thouless pumping represents a powerful concept to probe quantized topological invariants in quantum systems. We explore this mechanism in a generalized Rice-Mele Fermi-Hubbard model characterized by the presence of competing onsite and intersite interactions. While large on-site repulsion leads to a breakdown of quantized pumping , sufficiently large intersite interactions allow for an interaction-induced recovery of Thouless pumps. The stable topological transport at large interactions is connected to the presence of a spontaneous bond-order-wave in the ground-state phase diagram of the model. We also discuss a concrete experimental setup based on ultracold magnetic atoms in an optical lattice. <br \/><br \/>The pre-print can be accessed here: <a href=\"https:\/\/arxiv.org\/abs\/2308.13375\">arXiv<\/a><\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>Together with collaborators at ICFO, Barcelona, we investigate Hubbard- Thouless pumps when including dipolar interactions. While on-site repulsion destroys the mechanism, adding non-local interactions can recover the Thouless pump mechanism \u2026<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[38,41],"tags":[],"_links":{"self":[{"href":"https:\/\/www.erbium.at\/FF\/wp-json\/wp\/v2\/posts\/51220"}],"collection":[{"href":"https:\/\/www.erbium.at\/FF\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.erbium.at\/FF\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.erbium.at\/FF\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.erbium.at\/FF\/wp-json\/wp\/v2\/comments?post=51220"}],"version-history":[{"count":4,"href":"https:\/\/www.erbium.at\/FF\/wp-json\/wp\/v2\/posts\/51220\/revisions"}],"predecessor-version":[{"id":52027,"href":"https:\/\/www.erbium.at\/FF\/wp-json\/wp\/v2\/posts\/51220\/revisions\/52027"}],"wp:attachment":[{"href":"https:\/\/www.erbium.at\/FF\/wp-json\/wp\/v2\/media?parent=51220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.erbium.at\/FF\/wp-json\/wp\/v2\/categories?post=51220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.erbium.at\/FF\/wp-json\/wp\/v2\/tags?post=51220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}