中国物理B ›› 2016, Vol. 25 ›› Issue (12): 120304-120304.doi: 10.1088/1674-1056/25/12/120304
Controlled unknown quantum operations on hybrid systems
Yong He(何勇), Ming-Xing Luo(罗明星)
- 1. Department of Mathematics and Physics, Chongqing University of Science and Technology, Chongqing 401331, China;
2. Information Security and National Computing Grid Laboratory, Southwest Jiaotong University, Chengdu 610031, China;
3. Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
Controlled unknown quantum operations on hybrid systems
Yong He(何勇)1, Ming-Xing Luo(罗明星)2,3
- 1. Department of Mathematics and Physics, Chongqing University of Science and Technology, Chongqing 401331, China;
2. Information Security and National Computing Grid Laboratory, Southwest Jiaotong University, Chengdu 610031, China;
3. Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA
摘要：
Any unknown unitary operations conditioned on a control system can be deterministically performed if ancillary subspaces are available for the target systems[Zhou X Q, et al. 2011 Nat. Commun. 2 413]. In this paper, we show that previous optical schemes may be extended to general hybrid systems if unknown operations are provided by optical instruments. Moreover, a probabilistic scheme is proposed when the unknown operation may be performed on the subspaces of ancillary high-dimensional systems. Furthermore, the unknown operations conditioned on the multi-control system may be reduced to the case with a control system using additional linear circuit complexity. The new schemes may be more flexible for different systems or hybrid systems.
中图分类号: (Quantum computation architectures and implementations)
- 03.67.Lx