Quantum Computation with a One-Dimensional Optical Lattice

Details Quantum Computation with a One-Dimensional Optical Lattice Quantum Computation with a One-Dimensional Optical Lattice

2003-01-16

arxiv.org/abs/quant-ph/0301084v3

Phys. Rev. Lett. 91, 107902 (2003)

Physics

Quantum Physics

4 pages, 4 figures, REVTEX. v3: clarifications on Toffoli gate, version to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.91.107902

We present an economical dynamical control scheme to perform quantum computation on a one dimensional optical lattice, where each atom encodes one qubit. The model is based on atom tunneling transitions between neighboring sites of the lattice. They can be activated by external laser beams resulting in a two-qubit phase gate or in an exchange interaction. A realization of the Toffoli gate is presented which requires only a single laser pulse and no individual atom addressing.

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