Published February 16, 2007
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Journal Article
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Decoherence of Anyonic Charge in Interferometry Measurements
Chicago
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Abstract
We examine interferometric measurements of the topological charge of (non-Abelian) anyons. The target's topological charge is measured from its effect on the interference of probe particles sent through the interferometer. We find that superpositions of distinct anyonic charges a and a[prime] in the target decohere (exponentially in the number of probes particles used) when the probes have nontrivial monodromy with the charges that may be fused with a to give a[prime].
Additional Information
©2007 The American Physical Society (Received 8 September 2006; published 12 February 2007) We thank A. Kitaev, I. Klich, and especially J. Preskill for illuminating discussions, and the organizers and participants of the KITP Workshop on Topological Phases and Quantum Computation where this work was initiated. We would also like to acknowledge the hospitality of the IQI, the KITP, and Microsoft Project Q. This work was supported in part by the NSF under Grants No. PHY-0456720 and No. PHY99-07949, and the NSA under ARO Contract No. W911NF-05-1-0294.Files
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Additional details
- Eprint ID
- 7462
- Resolver ID
- CaltechAUTHORS:BONprl07
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2007-02-21Created from EPrint's datestamp field
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2021-11-08Created from EPrint's last_modified field