1998/06/30 by Gavin K. Brennen, Carlton M. Caves, Poul S. Jessen +1 · 1 citation
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1103/physrevlett.82.1060
published as Phys.Rev.Lett. 82 (1999) 1060-1063 · Revised version, To appear in Phys. Rev. Lett. Three separate postscript figures
arxiv created 1998/12/12 · arxiv updated 2009/12/01
We propose a new system for implementing quantum logic gates: neutral atoms trapped in a very far-off-resonance optical lattice. Pairs of atoms are made to occupy the same well by varying the polarization of the trapping lasers, and then a near-resonant electric dipole is induced by an auxiliary laser. A controlled-NOT can be implemented by conditioning the target atomic resonance on a resolvable level shift induced by the control atom. Atoms interact only during logical operations, thereby suppressing decoherence.