Statistical properties of eigenvalues for an operating quantum computer with static imperfections G. Benenti, G. Casati, S. Montangero and D. L. Shepelyansky Eur. Phys. J. D, 22 2 (2003) 285-293 Published online: 01 January 1900 DOI: 10.1140/epjd/e2002-00241-9