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CCMP Seminar - Infernal and exceptional edge states by Dr. Frank Schindler

When: Tuesday, January 23, 2024, 2:00 PM - 3:00 PM
Where: G.O Jones Building, Room 610, Mile End

Speaker: Dr. Frank Schindler

The classification of topological band structures in all local non-Hermitian symmetry classes has been recently completed.

However, many entries in the resulting periodic table have only been discussed in a formal setting and still lack a physical interpretation in terms of their bulk-boundary correspondence. In my talk, I will explain how a sensible definition of a bulk-boundary correspondence requires the notion of pseudospectrum. I will then use this formalism to shed light on the new types of anomalous edge states that can arise in non-Hermitian Hamiltonians. These edge states have no Hermitian analogue and so can only arise in an intrinsically dynamical setting.

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