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X-ORIGINAL-URL:https://www.lps.u-psud.fr/
X-WR-CALNAME:Laboratoire de physique des Solides
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BEGIN:VEVENT
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DTSTART;TZID=Europe/Paris:20211125T110000
DTEND;TZID=Europe/Paris:20211125T120000
DTSTAMP:20211007T143700
UID:MEC-6aed000af86a084f9cb0264161e29dd3@lps.u-psud.fr
CREATED:20211007
LAST-MODIFIED:20211119
PRIORITY:5
TRANSP:OPAQUE
SUMMARY:L. TRIFUNOVIC: Higher-order topological insulators and superconductors and beyond
DESCRIPTION:\n         Not so long ago, the concept of higher-order topological insulators and superconductors was mentioned for the first time in print (see Viewpoint [1]). Since then, the concept of higher-order topology has been recognized to be key for the description of boundary phenomenology of topological crystalline insulators and superconductors.         Although higher-order boundary phenomenology can exist without a topologically nontrivial bulk band structure, recent excitement stems from the observation that it can also be a consequence of (and protected by) nontrivial bulk topology if additional crystalline symmetries are present. In this picture, higher-order topological phases are not a new kind of topological phases, rather they are a new type of boundary manifestation of nontrivial bulk topology.\n\n\n\n         I will introduce extrinsic and intrinsic higher-order boundary phenomenology and discuss both bulk and boundary topological classification. A new type of bulk-boundary correspondence that naturally includes a higher-order boundary phenomenology will be also discussed [2].\n\n\n\n[1] https://physics.aps.org/articles/v10/132 ( https://physics.aps.org/articles/v10/132 )\n\n\n\n[2] L. Trifunovic, P.W. Brouwer, Phys. Status Solidi B, 258, 2000090 (2021).\n
URL:https://www.lps.u-psud.fr/events/m-rancic-tba-912/
ORGANIZER;CN=Andrej Meszaros:MAILTO:
CATEGORIES:Séminaire de la Théorie de la Matière Condensée
LOCATION:Moyen amphi (LPS) + ONLINE (Zoom)
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