Implementing a quantum cloning machine in separate cavities via the optical coherent pulse as a quantum communication bus

Meng-Zheng Zhu and Liu Ye
Phys. Rev. A 91, 042319 – Published 14 April 2015

Abstract

An efficient scheme is proposed to implement a quantum cloning machine in separate cavities based on a hybrid interaction between electron-spin systems placed in the cavities and an optical coherent pulse. The coefficient of the output state for the present cloning machine is just the direct product of two trigonometric functions, which ensures that different types of quantum cloning machine can be achieved readily in the same framework by appropriately adjusting the rotated angles. The present scheme can implement optimal one-to-two symmetric (asymmetric) universal quantum cloning, optimal symmetric (asymmetric) phase-covariant cloning, optimal symmetric (asymmetric) real-state cloning, optimal one-to-three symmetric economical real-state cloning, and optimal symmetric cloning of qubits given by an arbitrary axisymmetric distribution. In addition, photon loss of the qubus beams during the transmission and decoherence effects caused by such a photon loss are investigated.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 7 December 2014

DOI:https://doi.org/10.1103/PhysRevA.91.042319

©2015 American Physical Society

Authors & Affiliations

Meng-Zheng Zhu1,2 and Liu Ye1,*

  • 1School of Physics & Material Science, Anhui University, Hefei 230039, China
  • 2School of Physics & Electronic Information, Huaibei Normal University, Huaibei 235000, China

  • *Corresponding author: yeliu@ahu.edu.cn

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 91, Iss. 4 — April 2015

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×