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Phys. Rev. A 71, 032330 (2005) [9 pages]

Noise resistance of adiabatic quantum computation using random matrix theory

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Jérémie Roland and Nicolas J. Cerf
Quantum Information and Communication, Ecole Polytechnique, CP 165/59, Université Libre de Bruxelles, 1050 Brussels, Belgium

Received 1 October 2004; published 21 March 2005

Besides the traditional circuit-based model of quantum computation, several quantum algorithms based on a continuous-time Hamiltonian evolution have recently been introduced, including for instance continuous-time quantum walk algorithms as well as adiabatic quantum algorithms. Unfortunately, very little is known today about the behavior of these Hamiltonian algorithms in the presence of noise. Here, we perform a fully analytical study of the resistance to noise of these algorithms using perturbation theory combined with a theoretical noise model based on random matrices drawn from the Gaussian orthogonal ensemble, whose elements vary in time and form a stationary random process.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.71.032330
DOI:
10.1103/PhysRevA.71.032330
PACS:
03.67.Lx, 89.70.+c