paper

Holonomic Quantum Computation

arXiv:quant-ph/9904011 · doi:10.1016/S0375-9601(99)00803-8

Abstract

We show that the notion of generalized Berry phase i.e., non-abelian holonomy, can be used for enabling quantum computation. The computational space is realized by a -fold degenerate eigenspace of a family of Hamiltonians parametrized by a manifold . The point of represents classical configuration of control fields and, for multi-partite systems, couplings between subsystem. Adiabatic loops in the control induce non trivial unitary transformations on the computational space. For a generic system it is shown that this mechanism allows for universal quantum computation by composing a generic pair of loops in

Presentation improved, accepted by Phys. Lett. A, 5 pages LaTeX, no figures

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