Demonstration of Quantum Telecloning of Optical Coherent States

2005/07/31 by Satoshi Koike, Hiroki Takahashi, Hidehiro Yonezawa +4 · 2 citations
Computer Science · Physics and Astronomy · #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum optics and atomic interactions #quant-ph

paper · pdf · doi:10.1103/physrevlett.96.060504

published as Phys. Rev. Lett. 96, 060504 (2006) · 5 pages, 3 figures

arxiv created 2005/11/10 · openalex publication_date 2006/02/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We demonstrate unconditional telecloning for the first time. In particular, we symmetrically and unconditionally teleclone coherent states of light from one sender to two receivers, achieving a fidelity for each clone of F = 0.58 +/- 0.01, which surpasses the classical limit. This is a manipulation of a new type of multipartite entanglement whose nature is neither purely bipartite nor purely tripartite.

Citations

• Three qubits can be entangled in two inequivalent ways
• Experimental demonstration of quantum memory for light
• Non-Gaussian Cloning of Quantum Coherent States is Optimal

Cited by

• Optical state engineering, quantum communication, and robustness of entanglement promiscuity in three-mode Gaussian states
• Advances in quantum teleportation