Continuous-Variable Quantum Information Distributor: Reversible Telecloning

Abstract

We propose a scheme of continuous-variable reversible telecloning, which broadcast the information of an unknown state without loss from a sender to several spatially separated receivers exploiting multipartite entanglement as quantum channels. In this scheme, quantum information of an unknown state is distributed into $M$ optimal clones and $M-1$ anticlones using $2M$% -partite entanglement. For the perfect quantum information distribution that is optimal cloning, $2M$-partite entanglement is required to be a maximum two-party entanglement. Comparing with the quantum telecloning proposed by Loock and Braunstein [Phys. Rev. Lett. 87, 247901 (2001)], this protocol produces the anticlones (or time-reversed state) of the unknown quantum state, thus, keep all information of an unknown state.

5 pages, 2 figures

References in corpus (5)

• Quantum information with continuous variables
• Unconditional quantum cloning of coherent states with linear optics
• Demonstration of quantum telecloning of optical coherent states
• Multimode entanglement and telecloning in a noisy environment
• Continuous-Variable Quantum State Transfer with Partially Disembodied Transport

Cited by in corpus (7)

• Experimental Preparation of Quadripartite Cluster and GHZ Entangled States for Continuous Variables
• Quantum Cloning Machines and the Applications
• Experimental generation of genuine four-partite entangled states with total three-party correlation for continuous variables
• Continuous-Variable Telecloning with Phase-Conjugate Inputs
• Continuous-Variable Quantum Cloning of Coherent states with Phase-Conjugate Input Modes Using Linear Optics
• Broadcasting of continuous variable entanglement
• Nonclassical resource for continuous variable telecloning with non-Gaussian advantage