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SUMMARY:Seminario di Fisica statistica
DTSTART:20260217T130000Z
DTEND:20260217T150000Z
DTSTAMP:20260506T154700Z
UID:indico-event-50894@agenda.infn.it
DESCRIPTION:Speakers: Turkeshi Xhek (University of Cologne)\n\nQuantum com
 puting aims to harness uniquely quantum effects to achieve capabilities be
 yond the reach of classical machines. Realizing this vision at scale requi
 res protecting fragile quantum information from noise. However\, only a re
 stricted set of operations can be implemented with fault tolerance\, and m
 any of them remain efficiently simulable on classical computers. This limi
 tation can be overcome through quantum magic: a property of certain quantu
 m states that enables operations outside the fault-tolerant\, classically 
 accessible set. Without magic\, even a perfectly error-corrected quantum c
 omputer would offer no computational advantage. A central challenge is the
 refore not only to quantify magic\, but to understand its collective behav
 ior in large many-body systems\, where complexity emerges dynamically. In 
 this talk\, I will argue that quantum magic admits a natural description i
 n the language of statistical physics. Using replica methods\, I will stud
 y how magic is generated and propagates in fault-tolerant Clifford circuit
 s\, and determine how much magic is required to drive a system into a genu
 inely chaotic\, Haar-like phase. This perspective provides concrete tools 
 to benchmark and validate quantum devices\, while revealing intrinsic limi
 ts on what can be efficiently predicted or verified by physical observers 
 constrained to classical resources.\n\nhttps://agenda.infn.it/event/50894/
LOCATION:Aula Conversi (Dip. di Fisica - edificio G. Marconi)
URL:https://agenda.infn.it/event/50894/
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