用被束缚在微腔中纠缠三原子实现量子控制非门
收稿日期: 2020-04-27
修回日期: 2020-06-26
网络出版日期: 2020-11-13
Realization of quantum controlled not gate by entanglement of three atoms bound in micro-cavity
Received date: 2020-04-27
Revised date: 2020-06-26
Online published: 2020-11-13
彭永刚 . 用被束缚在微腔中纠缠三原子实现量子控制非门[J]. 大学物理, 2020 , 39(11) : 26 -30 . DOI: 10.16854 /j.cnki.1000-0712.200157
Using laser driving field and local laser field in three optical micro cavity field,atoms can induce any two atom entanglement and three atom entanglement in three atoms. Using input-output technology and adiabatic approximation theory,the effective Hamiltonian of Ising chain model is derived. The two-atom entanglement is measured by the concurrence,and the three - atom entanglement is measured by intrinsic entanglement. The evolution curve of entanglement of two and three atoms with time is given. The laser driving field and the local laser field can be adjusted properly,and the quantum controlled not gate can be realized by any two atoms in the long distance three atoms.
/
| 〈 |
|
〉 |