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SUMMARY:Probing Quantum Speedup in D-Wave Two - Ronnow\, T (ETH Zrich)
DTSTART:20131128T113000Z
DTEND:20131128T123000Z
UID:TALK49079@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:Co-authors: Sergio Boixo (Google Inc.)\, Sergei V. Isakov (Goo
 gle Inc.)\, Zhihui Wang (ISI\, University of California)\, Joshua Job (ISI
 \, University of California)\, Daniel Lidar (ISI\, University of Californi
 a)\, John Martinis (Department of Physics\, University of California)\, Ma
 tthias Troyer (ETH Zurich)\n\nWe are at a point where the first quantum de
 vices are becoming available both in laboratories and commercially. While 
 universal quantum computing still its infancy\, analogue devices\, such co
 ld atoms experiments and quantum annealers\, constitute the first step tow
 ards using quantum hardware for solving computational problems. In this ta
 lk\, we show that D-Wave devices closely follows the statistics of simulat
 ed quantum annealing\, whereas it is clearly different from semi-classical
  spin dynamics and classical thermal annealing. The theoretical study by S
 antoro [Science\, Santoro et al.\, 295 (5564)\, 2427]\, where it was shown
  that quantum annealing outperforms classical thermal annealing\, suggests
  that the D-Wave machines could have advantages over to classical hardware
 . We discuss how one probe for such advantages correctly\, and we present 
 preliminary results on the computational capabilities of the D-Wave device
 s.\n
LOCATION:Seminar Room 1\, Newton Institute
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