Quantum Fourier Transform in a Decoherence-Free Subspace
量子物理
2007-05-23 v1
摘要
Quantum Fourier transform is of primary importance in many quantum algorithms. In order to eliminate the destructive effects of decoherence induced by couplings between the quantum system and its environment, we propose a robust scheme for quantum Fourier transform over the intrinsic decoherence-free subspaces. The scheme is then applied to the circuit design of quantum Fourier transform over quantum networks under collective decoherence. The encoding efficiency and possible improvements are also discussed.
引用
@article{arxiv.quant-ph/0409122,
title = {Quantum Fourier Transform in a Decoherence-Free Subspace},
author = {Jian-wu Wu and Chun-wen Li and Re-bing Wu},
journal= {arXiv preprint arXiv:quant-ph/0409122},
year = {2007}
}
备注
7 pages, 6 figures