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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Semiconductor devices for entangled photon pair generation: a review.
TL;DR: In this paper, the authors review the recent progress in the development of semiconductor devices emitting entangled photons and present the physical processes allowing the generation of entanglement and tools to characterize it; they give an overview of major recent results of the last few years and highlight perspectives for future developments.
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Disentangling Scrambling and Decoherence via Quantum Teleportation
TL;DR: A quantum teleportation protocol provides a means of differentiating between quantum scrambling and decoherence, a crucial diagnostic for quantum information systems as mentioned in this paper, which can be used to distinguish between quantum information and quantum information.
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Effects of multiple pairs on visibility measurements of entangled photons generated by spontaneous parametric processes
Hiroki Takesue,Kaoru Shimizu +1 more
TL;DR: In this paper, the authors investigated the relationship between the average photon-pair number and the visibility of two-photon interference (TPI) using entanglement sources and showed that an indistinguishable entangled pair provides better visibility than a distinguishable one.
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Geometric phase for entangled spin pairs
TL;DR: In this paper, the geometric phase of the noncyclic geometric phase was analyzed for a pair of spin-spin interaction and was shown to reduce to a sum of one-particle geometric phases for product states.
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Ultra-bright and efficient single photon generation based on N-V centres in nanodiamonds on a solid immersion lens
TL;DR: In this article, a spin-coated nanodiamonds containing single nitrogen-vacancy colour centres on the flat surface of a ZrO2 solid immersion lens was used to obtain stable single photon count rates of up to 853 kcts/s at saturation under continuous wave excitation.
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.