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[Fizinfo] BME ElmFiz szeminárium, szept. 18. Ilya Vekhter

From: Kormos Márton <kormos.marton AT ttk.bme.hu>
To: "fizinfo AT lists.kfki.hu" <fizinfo AT lists.kfki.hu>, "elmfiz.hallgatok AT lists.bme.hu" <elmfiz.hallgatok AT lists.bme.hu>, "elmfiz.oktatok-kutatok AT lists.bme.hu" <elmfiz.oktatok-kutatok AT lists.bme.hu>
Subject: [Fizinfo] BME ElmFiz szeminárium, szept. 18. Ilya Vekhter
Date: Thu, 17 Sep 2026 13:23:37 +0000
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MEGHÍVÓ

BME Elméleti Fizika Szeminárium,

szept. 18. péntek 10:15,

1111 Budapest, Budafoki út 8., BME F III. magasföldszint 01.,
Elméleti Fizika Tanszék szemináriumi szoba

Ilya Vekhter (Louisiana State University)
Interface and boundary states in topological systems

While the prevailing early belief was that topological surface and
boundary states in insulators are insensitive to non-magnetic
disorder, the emerging consensus is that quantum numbers of those
states strongly depend on the boundary conditions. I will review the
results showing that surfaces and impurities can modify the
topological state properties in topological insulators and Weyl
semimetals, and discuss experimental signatures of these
modifications. The particular emphasis will be on the possibility of
non-helical states at topological interfaces, current-carrying states
at extended magnetic impurities, and the reconnection of Fermi arcs in
Weyl semimetals.

Minden érdeklődőt szeretettel várunk.

A további program megtekinthető itt: https://physics.ttk.bme.hu/theoryseminars

Kormos Márton
szemináriumi koordinátor

[Fizinfo] BME ElmFiz szeminárium, szept. 18. Ilya Vekhter, Kormos Márton, 09/17/2026