Quantum Logic Gates in Optical Lattices
量子物理
2009-10-31 v4
摘要
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.
引用
@article{arxiv.quant-ph/9806021,
title = {Quantum Logic Gates in Optical Lattices},
author = {Gavin K. Brennen and Carlton M. Caves and Poul S. Jessen and Ivan H. Deutsch},
journal= {arXiv preprint arXiv:quant-ph/9806021},
year = {2009}
}
备注
Revised version, To appear in Phys. Rev. Lett. Three separate postscript figures