9-13 July 2012
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=11&confId=14"><font color=#ff0000>SAIP2012 PROCEEDINGS AVAILABLE</font></a>

Analytical techniques for noise filtering in quantum logic gates

11 Jul 2012, 08:00
20m
Oral Presentation Track G - Theoretical and Computational Physics Theoretical

Speaker

Dr Hermann Uys (National Laser Centre, CSIR)

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Abstract content <br> &nbsp; (Max 300 words)

Describing quantum logic operations in the presence of time-dependent, noisy environments pose significant theoretical challenges. Here we use effective Hamiltonian theory as an efficient means of modelling non-commuting control operations perturbed by classical noise sources. The method allows calculation of the ensemble averaged fidelity of a control operation to arbitrary order in terms of a filter function. In particular we study the performance of dynamically corrected gates as predicted by the effective theory, and compare with brute-force numerical calculations.

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Primary author

Mr Todd Green (Centre for Engineered Quantum Systems, School of Physics, University of Sydney, Australia)

Co-authors

Dr Hermann Uys (National Laser Centre, CSIR) Dr Michael Biercuk (Centre for Engineered Quantum Systems, School of Physics, University of Sydney, Australia)

Presentation Materials

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