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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Experimental free-space quantum teleportation
Xian-Min Jin,Ji-Gang Ren,Ji-Gang Ren,Bin Yang,Zhenhuan Yi,Fei Zhou,Xiao-Fan Xu,Shao-Kai Wang,Dong Yang,Yuan-Feng Hu,Shuo Jiang,Tao Yang,Hao Yin,Kai Chen,Cheng-Zhi Peng,Jian-Wei Pan,Jian-Wei Pan +16 more
TL;DR: In this article, free-space quantum teleportation through 16 kilometres of air is demonstrated, and the results may pave the way for space-based experiments and global scale quantum communication applications.
Journal ArticleDOI
An efficient two-party quantum private comparison protocol with decoy photons and two-photon entanglement
TL;DR: An efficient quantum private comparison protocol for comparing information of equality with the help of a third party (TP) is proposed, which can ensure fairness, efficiency and security.
Journal ArticleDOI
A scheme for secure direct communication using EPR pairs and teleportation
F. L. Yan,X. Q. Zhang +1 more
TL;DR: A novel scheme for secure direct communication between Alice and Bob is proposed, where there is no need for establishing a shared secret key and teleportation transmits Bob’s message without revealing any information to a potential eavesdropper.
Journal ArticleDOI
12-Photon Entanglement and Scalable Scattershot Boson Sampling with Optimal Entangled-Photon Pairs from Parametric Down-Conversion
Han-Sen Zhong,Yuan Li,Wei Li,Li-Chao Peng,Zu-En Su,Yi Hu,Yu-Ming He,Xing Ding,Weijun Zhang,Hao Li,Lu Zhang,Zhen Wang,Lixing You,Xi-Lin Wang,Xiao Jiang,Li Li,Yu-Ao Chen,Nai-Le Liu,Chao-Yang Lu,Jian-Wei Pan +19 more
TL;DR: In this article, a degenerate telecommunication wavelength entangled-photon source from an ultrafast pulsed laser pumped spontaneous parametric down-conversion (SPDC) was designed and realized, which shows simultaneously 97% heralding efficiency and 96% indistinguishability between independent single photons without narrowband filtering.
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Perfect Teleportation, Quantum state sharing and Superdense Coding through a Genuinely Entangled Five-qubit State
TL;DR: In this article, the usefulness of a recently introduced five qubit state by Brown et al. for quantum teleportation, quantum state sharing and super-dense coding was investigated, and it was shown that this five-qubit state can be utilized for perfect teleportation of arbitrary single and two qubit systems.
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.