Mar 4 2024

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Krylov complexity of density matrix operators

Grey Room 3

Quantifying complexity in quantum systems has witnessed a surge of interest in recent years, with Krylov-based measures such as Krylov complexity ($C_K$) and Spread complexity ($C_S$) gaining promi
 
 
 
 
 
 
 
 
Black hole Quasi-Normal Mode instabilities: Pseudospectrum, asymptotics and resonant expansions

IFT Seminar Room/Red Room

Can we measure the 'effective regularity' of spacetime from the instabilities of black hole quasi-normal mode (QNM) overtones?
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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