Aharanov-Anandan's phase and fault tolerate quantum computation with symmetric SQUID

Preprint

13 May 2001

preprint
Published by arXiv in arXiv

Abstract

We give a simple way to detect the geometric phase shift and the conditional geometric phase shift with Josephson junction system. Comparing with the previous work(Falcl G, Fazio R, Palma G.M., Siewert J and Verdal V, {\it Nature} {\bf 407}, 355(2000)), our scheme has two advantages. We use the non-adiabatic operation, thus the detection is less affected by the decoherence. Also, we take the time evolution on zero dynamic phase loop, we need not take any extra operation to cancel the dynamic phase.

Keywords

QUANTUM COMPUTATION
AHARANOV ANANDAN'S
TOLERATE QUANTUM
SYMMETRIC SQUID
ANANDAN'S PHASE
FAULT TOLERATE
PHASE SHIFT

All Related Versions

Version 1, 2001-04-26, ArXiv
Version 2, 2001-04-30, ArXiv
Version 3, 2001-05-13, ArXiv
Version 4, 2001-08-21, ArXiv
Published version: Physical Review B, 65 (17), 172508.

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