5-6 juin 2018 78470 Saint-Rémy-lès-Chevreuse (France)
Mercredi 6
Circuits quantiques et dispositifs hybrides

› 11:40 - 12:20 (40min)
› Bât D9, Auditorium C7
Quantum computing with Schrödinger cat states
Zaki Leghtas  1, 2@  
1 : Centre Automatique et Systèmes  -  Site web
MINES ParisTech - École nationale supérieure des mines de Paris
2 : Laboratoire Pierre Aigrain  (LPA)  -  Site web
École normale supérieure - Paris, Université Pierre et Marie Curie - Paris 6, Université Paris Diderot - Paris 7, Centre National de la Recherche Scientifique : UMR8551
Département de Physique Ecole Normale Supérieure 24, rue Lhomond F-75231 Paris Cedex 05 -  France

Superconducting qubits are one of the most promising platforms to implement quantum technologies. Quantum processors of tens of qubits are now available, and exciting applications with these intermediate size systems are in perspective. However, many algorithms, including all those with a proved quantum speed-up, require extremely low error rates. This will most likely require quantum error correction (QEC). Unfortunately, current QEC architectures require daunting overheads in physical qubits and control electronics. The goal of this research is to reduce this overhead, and our approach is based on two key ideas. First, we use high Q resonators to redundantly encode quantum information. Second, we engineer non-linear dissipation to protect and manipulate this information.

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