{"id":28,"date":"2014-05-12T08:23:40","date_gmt":"2014-05-12T06:23:40","guid":{"rendered":"http:\/\/phsites.technion.ac.il\/dtqm\/?p=28"},"modified":"2014-05-14T14:42:27","modified_gmt":"2014-05-14T12:42:27","slug":"arbel-haim-time-reversal-invariant-topological-superconductivity-induced-repulsive-interactions-quantum-wires","status":"publish","type":"post","link":"https:\/\/phsites.technion.ac.il\/dtqm\/arbel-haim-time-reversal-invariant-topological-superconductivity-induced-repulsive-interactions-quantum-wires\/","title":{"rendered":"Time-Reversal Invariant Topological Superconductivity Induced by Repulsive Interactions in Quantum Wires"},"content":{"rendered":"<h2>Arbel Haim<\/h2>\n<p>We consider a model for a one-dimensional quantum wire with Rashba spin-orbit coupling and repulsive interactions, proximity coupled to a conventional <em>s<\/em>-wave superconductor. Using a combination of Hartree-Fock and density matrix renormalization group calculations, we show that for sufficiently strong interactions in the wire, a time-reversal invariant topological superconducting phase can be stabilized in the absence of an external magnetic field. This phase supports two zero-energy Majorana bound states at each end, which are protected by time-reversal symmetry. The mechanism for the formation of this phase is a reversal of the sign of the effective pair potential in the wire, due to the repulsive interactions. We calculate the differential conductance into the wire and its dependence on an applied magnetic field using the scattering-matrix formalism. The behavior of the zero-bias anomaly as a function of the field direction can serve as a distinct experimental signature of the topological phase.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Arbel Haim We consider a model for a one-dimensional quantum wire with Rashba spin-orbit coupling and repulsive interactions, proximity coupled to a conventional s-wave superconductor. Using a combination of Hartree-Fock and density matrix renormalization group calculations, we show that for sufficiently strong interactions in the wire, a time-reversal invariant topological superconducting phase can be stabilized &hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-28","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-uncategorized","7":"entry"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Time-Reversal Invariant Topological Superconductivity Induced by Repulsive Interactions in Quantum Wires - Dynamics and Transport in Quantum Matter<\/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:\/\/phsites.technion.ac.il\/dtqm\/arbel-haim-time-reversal-invariant-topological-superconductivity-induced-repulsive-interactions-quantum-wires\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Time-Reversal Invariant Topological Superconductivity Induced by Repulsive Interactions in Quantum Wires - Dynamics and Transport in Quantum Matter\" \/>\n<meta property=\"og:description\" content=\"Arbel Haim We consider a model for a one-dimensional quantum wire with Rashba spin-orbit coupling and repulsive interactions, proximity coupled to a conventional s-wave superconductor. Using a combination of Hartree-Fock and density matrix renormalization group calculations, we show that for sufficiently strong interactions in the wire, a time-reversal invariant topological superconducting phase can be stabilized &hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/phsites.technion.ac.il\/dtqm\/arbel-haim-time-reversal-invariant-topological-superconductivity-induced-repulsive-interactions-quantum-wires\/\" \/>\n<meta property=\"og:site_name\" content=\"Dynamics and Transport in Quantum Matter\" \/>\n<meta property=\"article:published_time\" content=\"2014-05-12T06:23:40+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2014-05-14T12:42:27+00:00\" \/>\n<meta name=\"author\" content=\"Adi\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Adi\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/phsites.technion.ac.il\\\/dtqm\\\/arbel-haim-time-reversal-invariant-topological-superconductivity-induced-repulsive-interactions-quantum-wires\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/phsites.technion.ac.il\\\/dtqm\\\/arbel-haim-time-reversal-invariant-topological-superconductivity-induced-repulsive-interactions-quantum-wires\\\/\"},\"author\":{\"name\":\"Adi\",\"@id\":\"https:\\\/\\\/phsites.technion.ac.il\\\/dtqm\\\/#\\\/schema\\\/person\\\/65231d9f0ecb94f8411926c66a3791ff\"},\"headline\":\"Time-Reversal Invariant Topological Superconductivity Induced by Repulsive Interactions in Quantum Wires\",\"datePublished\":\"2014-05-12T06:23:40+00:00\",\"dateModified\":\"2014-05-14T12:42:27+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/phsites.technion.ac.il\\\/dtqm\\\/arbel-haim-time-reversal-invariant-topological-superconductivity-induced-repulsive-interactions-quantum-wires\\\/\"},\"wordCount\":162,\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/phsites.technion.ac.il\\\/dtqm\\\/arbel-haim-time-reversal-invariant-topological-superconductivity-induced-repulsive-interactions-quantum-wires\\\/\",\"url\":\"https:\\\/\\\/phsites.technion.ac.il\\\/dtqm\\\/arbel-haim-time-reversal-invariant-topological-superconductivity-induced-repulsive-interactions-quantum-wires\\\/\",\"name\":\"Time-Reversal Invariant Topological Superconductivity Induced by Repulsive Interactions in Quantum Wires - 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