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SUMMARY:QSE Quantum Seminar\, "Topological pumping and quantum information
  processing" - Konrad Viebahn
DTSTART:20251023T120000
DTEND:20251023T133000
DTSTAMP:20260916T080529Z
UID:f699fe5d8824c3fdd1e5602a276023a0340fd5cae8a7317d518fbeca
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Konrad Viebahn\nPlease join us for the QSE Center Quant
 um Seminar with Konrad Viebahn from ETH Zurich who will give the talk
  "Topological pumping and quantum information processing" on Thursday Oc
 tober 23 from 12pm to 1:30pm\nLocation: CE 1 105\n\nPizzas will be availab
 le between the seminars at 12:00. All PhDs\, postdocs\, students\, group 
 leaders\, and PIs are welcome to join us.\n\nTITLE: "Topological pumping 
 and quantum information processing"\n\nABSTRACT:\nTopological pumps provid
 e a powerful method for transporting particles with remarkable precision b
 y slowly and cyclically modulating a lattice potential. This transport is 
 topologically protected - a feature it shares with the quantum Hall effect
  - making it inherently robust against noise and experimental imperfection
 s.\nIn this colloquium\, I will introduce a novel paradigm of this concept
 : moving beyond the transport of individual particles to the pumping of qu
 bits carrying quantum information. Our experiments\, which employ ultracol
 d fermions in dynamical optical lattices [1\,2]\, demonstrate the coheren
 t transport of not only single atoms but also entangled Bell pairs over hu
 ndreds of lattice sites. This capability allows us to perform fundamental 
 quantum computations during transport\, including high-fidelity two-qubit 
 gates. I will show how we can chain these operations together to build non
 -local quantum circuits and generate complex entanglement patterns across 
 the lattice.\n\n[1] arXiv:2409.02984 “Splitting and connecting singlets 
 in atomic quantum circuits”\n[2] arXiv:2507.22112 “Protected quantum g
 ates using qubit doublons in dynamical optical lattices”\n\nBIO: \nHavi
 ng studied at LMU Munich and at the University of Cambridge\, Konrad did h
 is PhD at the University of Cambridge\, where he set up a laboratory for s
 tudying ultracold atoms in quasicrystals made of light. In 2018 he moved t
 o ETH Zurich\, first as an ETH Fellow\, and later as a junior group leader
  in the lab of Tilman Esslinger. His research explores the frontiers of to
 pological matter\, many-body physics\, and quantum information\, using ult
 racold fermions in dynamically tuneable optical lattices.\n 
LOCATION:CE 1 105 https://plan.epfl.ch/?room==CE%201%20105
STATUS:CONFIRMED
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