Physics & Astronomy at the University of Southampton

 This week 
 Future 
 Previous 

 Finding us 

 

This week's colloquium in Physics & Astronomy

Fridays at 2:30 in the Physics Seminar Room




BFG COMPOSITE ROTATIONS: PRECISE CONTROL IN AN IMPRECISE WORLD


   Jonathan Jones  

University of Oxford

18 May 2012  


Quantum information processing technologies are notoriously vulnerable to the effects of errors. These include not only random errors (decoherence) but also systematic errors arising from experimental imperfections. Composite rotations, originally developed in NMR where they are called composite pulses, provide an effective way of tackling systematic errors in many cases, allowing precise control of quantum systems with ordinary imprecise equipment. After a simple introduction to the basic ideas, Prof Jones will describe BB1 composite rotations, and finally the recently discovered family of BFG rotations which allows extreme tolerance of errors in certain cases.



(Colloquia now on Google Calendar)

University of Southampton
 Webmaster

School of Physics and Astronomy, University of Southampton
Highfield, Southampton, SO17 1BJ, United Kingdom
Tel: +44 (0)23 8059 2093, Fax: +44 (0)23 8059 3910