中国物理B ›› 2018, Vol. 27 ›› Issue (11): 110304-110304.doi: 10.1088/1674-1056/27/11/110304

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇    下一篇

Rydberg quantum controlled-phase gate with one control and multiple target qubits

S L Su(苏石磊)   

  1. School of Physics and Engineering, Zhengzhou University, Zhengzhou 450001, China
  • 收稿日期:2018-06-29 修回日期:2018-08-22 出版日期:2018-11-05 发布日期:2018-11-05
  • 通讯作者: S L Su E-mail:slsu@zzu.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant No. 11747096).

Rydberg quantum controlled-phase gate with one control and multiple target qubits

S L Su(苏石磊)   

  1. School of Physics and Engineering, Zhengzhou University, Zhengzhou 450001, China
  • Received:2018-06-29 Revised:2018-08-22 Online:2018-11-05 Published:2018-11-05
  • Contact: S L Su E-mail:slsu@zzu.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant No. 11747096).

摘要:

We propose a scheme to construct the multiple-qubit Rydberg quantum controlled-phase gate with one control and multiple target qubits. The proposed quantum logic gate works under the asymmetric-Rydberg-interaction-induced dipole blockade and can be implemented with three operation steps. The most prominent characteristic of the scheme is that the required operation time and steps keep invariant as the number of qubits increases. The Rydberg state leakage and some practical situations are considered. The Lindblad master equation is used to evaluate and verify the feasibility of the scheme.

关键词: Rydberg atom, quantum logic gate, Rydberg-Rydberg interaction

Abstract:

We propose a scheme to construct the multiple-qubit Rydberg quantum controlled-phase gate with one control and multiple target qubits. The proposed quantum logic gate works under the asymmetric-Rydberg-interaction-induced dipole blockade and can be implemented with three operation steps. The most prominent characteristic of the scheme is that the required operation time and steps keep invariant as the number of qubits increases. The Rydberg state leakage and some practical situations are considered. The Lindblad master equation is used to evaluate and verify the feasibility of the scheme.

Key words: Rydberg atom, quantum logic gate, Rydberg-Rydberg interaction

中图分类号:  (Quantum information)

  • 03.67.-a
03.67.Lx (Quantum computation architectures and implementations) 32.80.Ee (Rydberg states)