Experimental quantum teleportation
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TLDR
In this article, the authors demonstrated the feasibility of quantum teleportation over arbitrary distances of the state of a quantum system by using a measurement such that the second photon of the entangled pair acquires the polarization of the initial photon.Abstract:
Quantum teleportation — the transmission and reconstruction over arbitrary distances of the state of a quantum system — is demonstrated experimentally. During teleportation, an initial photon which carries the polarization that is to be transferred and one of a pair of entangled photons are subjected to a measurement such that the second photon of the entangled pair acquires the polarization of the initial photon. This latter photon can be arbitrarily far away from the initial one. Quantum teleportation will be a critical ingredient for quantum computation networks.read more
Citations
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Time-Continuous Bell Measurements
TL;DR: In this paper, the authors combine the concept of Bell measurements, in which two systems are projected into a maximally entangled state, with continuous measurements, which concerns the evolution of a continuously monitored quantum system.
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Entanglement concentration for multi-particle partially entangled W state using nitrogen vacancy center and microtoroidal resonator system
Lingyan He,Cong Cao,Chuan Wang +2 more
TL;DR: In this paper, an efficient entanglement concentration protocol (ECP) for N spatially separated nitrogen-vacancy (N-V) centers coupled to microtoroidal resonators in a partially entangled W state is presented.
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Teleportation via generalized measurements, and conclusive teleportation
Tal Mor,Paweł Horodecki +1 more
TL;DR: In this article, it was shown that conclusive teleportation can be obtained with any pure entangled state, and it can be arbitrarily approached with a particular mixed state, based on the connection between teleportation and generalized measurements.
Journal ArticleDOI
Teleportation of an arbitrary multipartite state via photonic Faraday rotation
TL;DR: In this paper, the authors proposed a deterministically teleporting an arbitrary multipartite state, either product or entangled, using Faraday rotation of the photonic polarization, based on the input-output process of single-photon pulses regarding cavities.
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Quantum superposition of parametrically amplified multiphoton pure states whitin a decoherence-free schroedinger-cat structure
TL;DR: In this paper, the quantum entanglement and superposition properties of the photon-couples generated by parametric down-conversion were analyzed for several travellingwave optical configurations implying different input quantum-injection schemes.
References
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Teleporting an unknown quantum state via dual classical and Einstein-Podolsky-Rosen channels
Charles H. Bennett,Gilles Brassard,Claude Crépeau,Richard Jozsa,Asher Peres,William K. Wootters +5 more
TL;DR: An unknown quantum state \ensuremath{\Vert}\ensure Math{\varphi}〉 can be disassembled into, then later reconstructed from, purely classical information and purely nonclassical Einstein-Podolsky-Rosen (EPR) correlations.
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A single quantum cannot be cloned
TL;DR: In this article, the linearity of quantum mechanics has been shown to prevent the replication of a photon of definite polarization in the presence of an excited atom, and the authors show that this conclusion holds for all quantum systems.
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Speakable and Unspeakable in Quatum Mechanics
J. S. Bell,N. David Mermin +1 more
TL;DR: Koestler's book The Sleepwalkers as discussed by the authors is an account of the Copernican revolution, with Copernicus, Kepler, and Galilei as heroes, and he concluded that they were not really aware of what they were doing.
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Die gegenwärtige Situation in der Quantenmechanik
TL;DR: In this paper, the authors discuss the effect of the Verschrgnkung on the performance of the experimentators in terms of the results of the experiments they conducted, and present an analysis of the verifiability of their results.