Quantum computation with phase drift errors

Details Quantum computation with phase drift errors Quantum computation with phase drift errors

1997-04-02

arxiv.org/abs/quant-ph/9704003v1

Physics

Quantum Physics

5 pages, RevTex, 2 figures

Scientific paper

10.1103/PhysRevLett.78.3971

We present results of numerical simulations of the evolution of an ion trap quantum computer made out of 18 ions which are subject to a sequence of nearly 15000 laser pulses in order to find the prime factors of N=15. We analyze the effect of random and systematic phase drift errors arising from inaccuracies in the laser pulses which induce over (under) rotation of the quantum state. Simple analytic estimates of the tolerance for the quality of driving pulses are presented. We examine the use of watchdog stabilization to partially correct phase drift errors concluding that, in the regime investigated, it is rather inefficient.

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