Dear colleagues,
Those of you interested in quantum computing will find the April 6th Monday
Physics Colloquium to be of interest: John Martinis is the speaker.
Best wishes,
Martin
---------- Forwarded message ----------
Subject: Announcement for Harvard Physics Colloquium Speaker John Martinis,
UCSB, on 04/06/15
Harvard Physics Colloquium
Monday, April 06, 2015
4:15 p.m.-5:15 p.m. in Jefferson 250
Tea served in Jefferson 450 @ 3:30 p.m.
*“Bit-flip Error Correction with Superconducting Xmon Qubits”*
John Martinis
*UCSB*
For announcement poster please go to:
http://www.physics.harvard.edu/events/colloquium.pdf
One of the outstanding challenges of quantum computation has been the
realization of scalable qubits with high fidelity for all necessary
operations. Here I discuss the design of a linear chain of 9
superconducting Xmon qubits that allows initialization, single and two
qubit gates, and fast repetitive and simultaneous measurement with fidelity
in the 99%-99.9% range. This performance has allowed us to perform
bit-flip error correction with 8 repetition cycles that leads to improved
lifetime of the state. The use of error correction based on the surface
code enables all errors, both data and measurement, to be corrected to 1st
and 2nd order.