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DTSTART;TZID=America/Chicago:20260526T160000
DTEND;TZID=America/Chicago:20260526T170000
DTSTAMP:20260527T061359Z
SUMMARY:Special Quantum Information Seminar: Theo Malas-Danze and Emilio Rui
UID:642632@northwestern.edu
TZID:America/Chicago
DESCRIPTION:Theo Malas-Danze from Alice and Bob - INRIA Quantic Team (Paris)  “Satellite Limit Cycles can Break Cat-Qubit Stability”  I will present a simulation of the autoparametric cat\, taking into account time dependence in the drive\, and all the nonlinearities of the interaction between the two modes with this specific architecture. This allows identification of an instability threshold in the classical system which correlates with the onset of chaos in the system dynamics.     Emilio Rui from Alice and Bob - INRIA Quantic Team (Paris)  “Nonperturbative Tensor-Network Methods for Multimode and Driven Superconducting Circuits”  In this talk\, I will present a tensor-network framework for the nonperturbative analysis of many-body systems arising in circuit QED. I will first show how\, by leveraging physically inspired trial states\, the DMRG-X algorithm provides non-perturbative corrections to the excitation spectrum of Josephson junction arrays\, such as those used in fluxonium qubits. I will then show how the same framework can be naturally extended to the study of quasi-periodically driven systems using a Floquet representation\, and how DMRG-X enables a direct extension of branch analysis to the many-mode\, many-drive setting.      
LOCATION:Technological Institute\, F160\, 2145 Sheridan Road\, Evanston\, IL 60208
TRANSP:OPAQUE
URL:https://planitpurple.northwestern.edu/event/642632
CREATED:20260501T050000Z
STATUS:CONFIRMED
LAST-MODIFIED:20260526T182538Z
PRIORITY:0
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