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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:20210624T110000
DTEND;TZID=Europe/Paris:20210624T000000
DTSTAMP:20210621T065300
UID:MEC-8c01a75941549a705cf7275e41b21f0d@lps.u-psud.fr
CREATED:20210621
LAST-MODIFIED:20210624
PRIORITY:5
TRANSP:OPAQUE
SUMMARY:Emil J. BERGHOLTZ  “Exceptional Topology of Non-Hermitian Systems”
DESCRIPTION:\nEmil J. Bergholtz, Department of Physics, Stockholm University\n\n\n\n    Non-Hermitian “Hamiltonians” have become an important asset for the effective description of various physical systems that are subject to dissipation. Using simple examples, I will discuss several new topological phenomena and relate them to the exclusively non-Hermitian concept of exceptional degeneracies at which both eigenvalues and eigenvectors coalesce.    I will also discuss how the bulk-boundary correspondence is modified in non-Hermitian systems and how this might be harnessed in novel sensor devices.\n\n\n\n[1] E.J. Bergholtz et al., Rev. Mod. Phys. 93, 015005 (2021).[2] J.C. Budich and E.J. Bergholtz, Phys. Rev. Lett. 125, 180403 (2020).\n
URL:https://www.lps.u-psud.fr/en/events/emil-j-bergholtz-exceptional-topology-of-non-hermitian-systems-2/
CATEGORIES:Condensed Matter Theory Seminar
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