Experimental test of the no signaling theorem

Abstract

In 1981 N. Herbert proposed a gedanken experiment in order to achieve by the ''First Laser Amplified Superluminal Hookup'' (FLASH) a faster than light communication (FTL) by quantum nonlocality. The present work reports the first experimental realization of that proposal by the optical parametric amplification of a single photon belonging to an entangled EPR pair into an output field involving 5 x 10^3 photons. A thorough theoretical and experimental analysis explains in general and conclusive terms the precise reasons for the failure of the FLASH program as well as of any similar FTL proposals.

4 pages, 4 figures

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• Quantum cloning
• Phase covariant quantum cloning
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• Asymptotic quantum cloning is state estimation
• How the no-cloning theorem got its name
• Approximate quantum cloning and the impossibility of superluminal information transfer
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Cited by in corpus (9)

• Non-Hermitian Hamiltonians and no-go theorems in quantum information
• Quantum Cloning Machines and the Applications
• Schroedinger Cat: Entanglement test in a Micro-Macroscopic system
• Investigating macroscopic quantum superpositions and the quantum-to-classical transition by optical parametric amplification
• Nonlocality, No-Signalling and Bell's Theorem investigated by Weyl's Conformal Differential Geometry
• Entanglement and Quantum Superposition of a Macroscopic - Macroscopic system
• Entanglement and Non-locality in a Micro-Macroscopic system
• On the Superluminal Quantum Tunneling and "Causality Violation"
• Violation of no-signaling on a public quantum computer