{"id":2122,"date":"2022-09-20T11:26:59","date_gmt":"2022-09-20T09:26:59","guid":{"rendered":"https:\/\/www.uni.lu\/fstm-fr\/events\/cancelled-physics-seminar-fraunhofer-pattern-in-the-presence-of-majorana-zero-modes\/"},"modified":"2022-09-20T11:26:59","modified_gmt":"2022-09-20T09:26:59","slug":"cancelled-physics-seminar-fraunhofer-pattern-in-the-presence-of-majorana-zero-modes","status":"publish","type":"events","link":"https:\/\/www.uni.lu\/fstm-fr\/events\/cancelled-physics-seminar-fraunhofer-pattern-in-the-presence-of-majorana-zero-modes\/","title":{"rendered":"CANCELLED !  Physics Seminar:  Fraunhofer pattern in the presence of Majorana zero modes"},"content":{"rendered":"<section class=\"wp-block-unilux-blocks-free-section section\"><div class=\"container xl:max-w-screen-xl\"><p>Save the date !<\/p><p>\u00a0<\/p><p><strong>\u00a0<\/strong><\/p><p>Wednesday, September 28<sup>th\u00a0 <\/sup>2022 at 2:00 PM<\/p><p>\u00a0<\/p><p>\u00a0<\/p><p>Topological states are recent concepts in condensed matter physics that have important implications for example in metrology, due to their robust transport properties or in topological quantum computation through the braiding of Majorana bound states. Here, we propose a novel topological Josephson junction with the normal region being a quantum spin Hall insulator. Using the BHZ model and numerical tight-binding simulations, we show that the Fraunhofer pattern in the presence of Majorana edge modes in the superconductors behaves dramatically different with respect to size and period as compared to the situation without Majorana edge modes [1]. The two regimes are connected to each other by the application of a Zeeman field. By investigating the different scattering processes in the junction by means of an analytical scattering model, we can show that the presence of Majorana edge modes can induce strong crossed Andreev reflection via the two edges (leading to non-local triplet pairing) that is otherwise strongly suppressed by virtue of the spin-momentum locking of the helical edge states. We further argue that the effect originates from a truly non-local feature of separated Majoranas that can be measured in equilibrium and at finite temperature. Together with predictions for the two-terminal conductance [2], the present setup offers unique and experimentally accessible signatures of topological superconductivity.<\/p><p>\u00a0<\/p><p>[1] F. Dominguez, E.G. Novik, P. Recher, to be submitted (2022).<\/p><p>[2] E.G. Novik, B. Trauzettel, P. Recher, Phys. Rev. B <strong>101<\/strong>, 235308 (2020<\/p><\/div><\/section>","protected":false},"excerpt":{"rendered":"<p>Save the date !\u00a0Physics Seminar\u00a0Campus LimpertsbergB\u00e2timent des Sciences, BSC 2.04\u00a0Wednesday, September 28th\u00a0 2022 at 2:00 PM\u00a0Talk by Prof. Dr. Patrik RecherTechnische Universit\u00e4t\u00a0BraunschweigInstitut f\u00fcr Mathematische\u00a0Physik\u00a0Invited by Prof. Thomas Schmidt\u00a0\u00a0\u00a0Fraunhofer pattern in the presence of Majorana zero modes\u00a0Topological states are recent concepts in condensed matter physics that have important implications for example in metrology, due to their robust transport properties or in topological quantum computation through the braiding of Majorana bound states. Here, we propose a novel topological Josephson junction with the normal region being a quantum spin Hall insulator. Using the BHZ model and numerical tight-binding simulations, we show that the Fraunhofer pattern in the presence of Majorana edge modes in the superconductors behaves dramatically different with respect to size and period as compared to the situation without Majorana edge modes [1]. The two regimes are connected to each other by the application of a Zeeman field. By investigating the different scattering processes in the junction by means of an analytical scattering model, we can show that the presence of Majorana edge modes can induce strong crossed Andreev reflection via the two edges (leading to non-local triplet pairing) that is otherwise strongly suppressed by virtue of the spin-momentum locking of the helical edge states. We further argue that the effect originates from a truly non-local feature of separated Majoranas that can be measured in equilibrium and at finite temperature. Together with predictions for the two-terminal conductance [2], the present setup offers unique and experimentally accessible signatures of topological superconductivity.\u00a0[1] F. Dominguez, E.G. Novik, P. Recher, to be submitted (2022).[2] E.G. Novik, B. Trauzettel, P. Recher, Phys. Rev. B 101, 235308 (2020<\/p>\n","protected":false},"author":0,"featured_media":2123,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"featured_image_focal_point":[],"show_featured_caption":false,"ulux_newsletter_groups":"","uluxPostTitle":"","uluxPrePostTitle":"","_trash_the_other_posts":false,"_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"event_start_date":"2022-09-28 14:00:00","event_end_date":"2022-09-28 15:00:00","event_speaker_name":"Talk by Prof. Dr. Patrik Recher,Technische Universit\u00e4t Braunschweig Institut f\u00fcr Mathematische Physik, invited by Prof. Thomas Schmidt","event_speaker_link":"","event_is_online":false,"event_location":"Campus Limpertsberg\r\nB\u00e2timent des Sciences, BSC 2.04\r\n","event_street":"","event_location_link":"","event_zip_code":"","event_city":"","event_country":"LU"},"events-topic":[310],"events-type":[],"organisation":[75],"authorship":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v22.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>CANCELLED ! Physics Seminar: Fraunhofer pattern in the presence of Majorana zero modes - FSTM I Uni.lu<\/title>\n<meta name=\"description\" content=\"Save the date !\u00a0Physics Seminar\u00a0Campus LimpertsbergB\u00e2timent des Sciences, BSC 2.04\u00a0Wednesday, September 28th\u00a0 2022 at 2:00 PM\u00a0Talk by Prof. Dr. Patrik RecherTechnische Universit\u00e4t\u00a0BraunschweigInstitut f\u00fcr Mathematische\u00a0Physik\u00a0Invited by Prof. Thomas Schmidt\u00a0\u00a0\u00a0Fraunhofer pattern in the presence of Majorana zero modes\u00a0Topological states are recent concepts in condensed matter physics that have important implications for example in metrology, due to their robust transport properties or in topological quantum computation through the braiding of Majorana bound states. Here, we propose a novel topological Josephson junction with the normal region being a quantum spin Hall insulator. Using the BHZ model and numerical tight-binding simulations, we show that the Fraunhofer pattern in the presence of Majorana edge modes in the superconductors behaves dramatically different with respect to size and period as compared to the situation without Majorana edge modes . The two regimes are connected to each other by the application of a Zeeman field. By investigating the different scattering processes in the junction by means of an analytical scattering model, we can show that the presence of Majorana edge modes can induce strong crossed Andreev reflection via the two edges (leading to non-local triplet pairing) that is otherwise strongly suppressed by virtue of the spin-momentum locking of the helical edge states. We further argue that the effect originates from a truly non-local feature of separated Majoranas that can be measured in equilibrium and at finite temperature. Together with predictions for the two-terminal conductance , the present setup offers unique and experimentally accessible signatures of topological superconductivity.\u00a0 F. Dominguez, E.G. Novik, P. Recher, to be submitted (2022). E.G. Novik, B. Trauzettel, P. Recher, Phys. Rev. B 101, 235308 (2020\" \/>\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.uni.lu\/fstm-fr\/events\/cancelled-physics-seminar-fraunhofer-pattern-in-the-presence-of-majorana-zero-modes\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CANCELLED ! Physics Seminar: Fraunhofer pattern in the presence of Majorana zero modes\" \/>\n<meta property=\"og:description\" content=\"Save the date !\u00a0Physics Seminar\u00a0Campus LimpertsbergB\u00e2timent des Sciences, BSC 2.04\u00a0Wednesday, September 28th\u00a0 2022 at 2:00 PM\u00a0Talk by Prof. Dr. Patrik RecherTechnische Universit\u00e4t\u00a0BraunschweigInstitut f\u00fcr Mathematische\u00a0Physik\u00a0Invited by Prof. Thomas Schmidt\u00a0\u00a0\u00a0Fraunhofer pattern in the presence of Majorana zero modes\u00a0Topological states are recent concepts in condensed matter physics that have important implications for example in metrology, due to their robust transport properties or in topological quantum computation through the braiding of Majorana bound states. Here, we propose a novel topological Josephson junction with the normal region being a quantum spin Hall insulator. Using the BHZ model and numerical tight-binding simulations, we show that the Fraunhofer pattern in the presence of Majorana edge modes in the superconductors behaves dramatically different with respect to size and period as compared to the situation without Majorana edge modes . The two regimes are connected to each other by the application of a Zeeman field. By investigating the different scattering processes in the junction by means of an analytical scattering model, we can show that the presence of Majorana edge modes can induce strong crossed Andreev reflection via the two edges (leading to non-local triplet pairing) that is otherwise strongly suppressed by virtue of the spin-momentum locking of the helical edge states. We further argue that the effect originates from a truly non-local feature of separated Majoranas that can be measured in equilibrium and at finite temperature. Together with predictions for the two-terminal conductance , the present setup offers unique and experimentally accessible signatures of topological superconductivity.\u00a0 F. Dominguez, E.G. Novik, P. Recher, to be submitted (2022). E.G. Novik, B. Trauzettel, P. Recher, Phys. Rev. B 101, 235308 (2020\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.uni.lu\/fstm-fr\/events\/cancelled-physics-seminar-fraunhofer-pattern-in-the-presence-of-majorana-zero-modes\/\" \/>\n<meta property=\"og:site_name\" content=\"FSTM FR\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/fstm.uni.lu\/\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/20\/2026\/03\/03111744\/FSTM_SM-Profile_1600x1600px-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"2560\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.uni.lu\/fstm-fr\/events\/cancelled-physics-seminar-fraunhofer-pattern-in-the-presence-of-majorana-zero-modes\/\",\"url\":\"https:\/\/www.uni.lu\/fstm-fr\/events\/cancelled-physics-seminar-fraunhofer-pattern-in-the-presence-of-majorana-zero-modes\/\",\"name\":\"CANCELLED ! 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Physics Seminar: Fraunhofer pattern in the presence of Majorana zero modes","og_description":"Save the date !\u00a0Physics Seminar\u00a0Campus LimpertsbergB\u00e2timent des Sciences, BSC 2.04\u00a0Wednesday, September 28th\u00a0 2022 at 2:00 PM\u00a0Talk by Prof. Dr. Patrik RecherTechnische Universit\u00e4t\u00a0BraunschweigInstitut f\u00fcr Mathematische\u00a0Physik\u00a0Invited by Prof. Thomas Schmidt\u00a0\u00a0\u00a0Fraunhofer pattern in the presence of Majorana zero modes\u00a0Topological states are recent concepts in condensed matter physics that have important implications for example in metrology, due to their robust transport properties or in topological quantum computation through the braiding of Majorana bound states. Here, we propose a novel topological Josephson junction with the normal region being a quantum spin Hall insulator. 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Here, we propose a novel topological Josephson junction with the normal region being a quantum spin Hall insulator. Using the BHZ model and numerical tight-binding simulations, we show that the Fraunhofer pattern in the presence of Majorana edge modes in the superconductors behaves dramatically different with respect to size and period as compared to the situation without Majorana edge modes . The two regimes are connected to each other by the application of a Zeeman field. By investigating the different scattering processes in the junction by means of an analytical scattering model, we can show that the presence of Majorana edge modes can induce strong crossed Andreev reflection via the two edges (leading to non-local triplet pairing) that is otherwise strongly suppressed by virtue of the spin-momentum locking of the helical edge states. We further argue that the effect originates from a truly non-local feature of separated Majoranas that can be measured in equilibrium and at finite temperature. Together with predictions for the two-terminal conductance , the present setup offers unique and experimentally accessible signatures of topological superconductivity.\u00a0 F. Dominguez, E.G. Novik, P. Recher, to be submitted (2022). E.G. Novik, B. Trauzettel, P. Recher, Phys. Rev. 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