BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Taking Control of Superconducting Qubits - Siddiqi\, I (University
  of California\, Berkeley)
DTSTART:20140805T093000Z
DTEND:20140805T101000Z
UID:TALK53607@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:Electronic circuits which exhibit quantum mechanical phenomena
 superposition and entanglement\, in particularpromise a new generation of 
 computers capable of solving currently intractable problems\, secure commu
 nication\, precision metrology\, detectors with unparalleled sensitivity\,
  and an efficient route for synthesizing new materials. One of the fundame
 ntal challenges\, however\, in realizing quantum machines is to sustain co
 herence over a time interval practical for performing coherent operations 
 or computation. Until now\, boosting coherence has involved hardware devel
 opment to minimize coupling to a dissipative environment which typically t
 ransforms a quantum superposition into a classical state. Recent advances 
 in the development of robust quantum-noise-limited microwave amplifiers an
 d quantum bits with lifetimes in excess of 100 microseconds have enabled t
 he use of feedback to actively suppress decoherence. In particular\, we ha
 ve been able to tailor the dissipa tive environment\, either via measureme
 nt or excitation pulses\, to stabilize quantum superposition states and co
 herent oscillations as well as track the evolution of single and two qubit
  states.\n
LOCATION:Seminar Room 1\, Newton Institute
END:VEVENT
END:VCALENDAR