Continuous-Variable Telecloning with Phase-Conjugate Inputs

Abstract

We propose a scheme for continuous-variable telecloning with phase-conjugate inputs (PCI). Two cases of PCI telecloning are considered. The first case is where PCI telecloning produces $M$ clones nonlocally and $M$ anticlones locally, or vice versa. This kind of PCI telecloning requires only one EPR (Einstein-Podolsky-Rosen) entangled, two-mode squeezed state as a resource for building the appropriate multi-mode, multipartite entangled state via linear optics. The other case is a PCI telecloning protocol in which both clones and anticlones are created nonlocally. Such a scheme requires two EPR entangled states for the generation of a suitable multipartite entangled state. As our schemes are reversible, optimal cloning fidelities are achieved in the limit of infinite squeezing.

7 pages, 4 figures, appear in Phys. Rev. A

References in corpus (5)

• Universal optical amplification without nonlinearity
• Multimode entanglement and telecloning in a noisy environment
• Optical state engineering, quantum communication, and robustness of entanglement promiscuity in three-mode Gaussian states
• Continuous-Variable Quantum Cloning of Coherent states with Phase-Conjugate Input Modes Using Linear Optics
• Nonlocal Nondegenerate Optical Parametric Amplifier Based on Genuine Multipartite Entanglement

Cited by in corpus (3)

• Generation of pure continuous-variable entangled cluster states of four separate atomic ensembles in a ring cavity
• Quantum Teamwork for Unconditional Multiparty Communication with Gaussian States
• Experimental generation of genuine four-partite entangled states with total three-party correlation for continuous variables