Natural two-qubit gate for quantum computation using the XY interaction
量子物理
2009-11-07 v2 凝聚态物理
摘要
The two-qubit interaction Hamiltonian of a given physical implementation determines whether or not a two-qubit gate such as the CNOT gate can be realized easily. It can be shown that, e.g., with the XY interaction more than one two-qubit operation is required in order to realize CNOT. Here we propose a two-qubit gate for the XY interaction which combines CNOT with the SWAP operation. By using this gate quantum circuits can be implemented efficiently, even if only nearest-neighbor coupling between the qubits is available.
引用
@article{arxiv.quant-ph/0209035,
title = {Natural two-qubit gate for quantum computation using the XY interaction},
author = {Norbert Schuch and Jens Siewert},
journal= {arXiv preprint arXiv:quant-ph/0209035},
year = {2009}
}
备注
8 pages, REVTeX4; published version (minor changes, Appendix B added)