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SUMMARY:Novel quantum dynamics with superconducting qubits - Pedram Rousha
 n (Google Quantum AI)
DTSTART:20260226T161500Z
DTEND:20260226T171500Z
UID:TALK241726@talks.cam.ac.uk
CONTACT:Andrea Pizzi
DESCRIPTION:The prevailing view is that quantum phenomena can be leveraged
  to tackle certain problems beyond the reach of classical approaches. Rece
 nt years have witnessed significant progress in this direction\; in partic
 ular\, superconducting qubits have emerged as one of the leading platforms
  for quantum simulation and computation on Noisy Intermediate-Scale Quantu
 m (NISQ) processors. This progress is exemplified by research ranging from
  the foundations of quantum mechanics [1] to the non-equilibrium dynamics 
 of elementary excitations [2] and condensed matter physics [3\,4]. By util
 izing the contextuality of quantum measurements to solve a 2D hidden linea
 r function problem\, we demonstrate a quantum advantage through a computat
 ional separation for up to 105 qubits on these bounded-resource tasks [1].
  Motivated by high-energy physics\, we image charge and string dynamics in
  (2+1)D lattice gauge theories [2]\, revealing two distinct regimes within
  the confining phase: a weak-confinement regime with strong transverse str
 ing fluctuations and a strong-confinement regime where these fluctuations 
 are suppressed. Turning to condensed matter\, we observe novel localizatio
 n in one- and two-dimensional many-body systems that lack energy diffusion
  despite being disorder-free and translationally invariant [3]. Additional
 ly\, we show that strong disorder in interacting multi-level landscapes ca
 n induce superfluidity characterized by long-range phase coherence [4]. To
 gether\, these results show that NISQ processors\, even without fault tole
 rance\, are powerful tools for probing and advancing our understanding of 
 complex non-equilibrium quantum dynamics.\n\n[1] S. Kumar et al.\, arxiv.o
 rg/abs/2512.02284\n\n[2] Cochran et al.\, Nature 642\, 315–320 (2025)\n\
 n[3] Gyawali  et al.\, arxiv.org/abs/2410.06557\n\n[4] Ticea et al.\, arxi
 v.org/abs/2512.21416\n
LOCATION:Ray Dolby Auditorium\, Ray Dolby Centre\, Cavendish Laboratory\, 
 JJ Thomson Avenue\, CB3 0US
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