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Quantum entanglement is one of the most important resources in quantum information. In recent years, the research of quantum entanglement mainly focused on the increase in the number of entangled qubits or the high-dimensional entanglement…

Quantum teleportation provides a way to transmit unknown quantum states from one location to another. In the quantum world, multilevel systems which enable high-dimensional systems are more prevalent. Therefore, to completely rebuild the…

The academic research into entanglement nicely illustrates the interplay between fundamental science and applications, and the need to foster both aspects to advance either one. For instance, the possibility to distribute entangled photons…

Quantum Physics · Physics 2016-05-25 Nicolas Gisin , Sébastien Tanzilli , Wolfgang Tittel

Precise measurement or perfect cloning of unknown quantum states is forbidden by the laws of quantum mechanics. Yet, quantum teleportation in principle allows for a faithful and disembodied transmission of unknown quantum states between…

Universal quantum error-correction requires the ability of manipulating entanglement of five or more particles. Although entanglement of three or four particles has been experimentally demonstrated and used to obtain the extreme…

Quantum Physics · Physics 2009-11-10 Zhi Zhao , Yu-Ao Chen , An-Ning Zhang , Tao Yang , Hans Briegel , Jian-Wei Pan

We use photon pairs hyperentangled in polarization and orbital angular momentum to implement a novel entanglement-enhanced quantum state communication technique, known as SuperDense Teleportation, to communicate a specific class of…

Quantum Physics · Physics 2019-06-26 Trent M. Graham , Herbert J. Bernstein , Tzu-Chieh Wei , Marius Junge , Paul G. Kwiat

We report the experimental realization of teleporting an entangled qubit. The qubit is physically implemented by a two-dimensional subspace of states of a mode of the electromagnetic field, specifically, the space spanned by the vacuum and…

Quantum Physics · Physics 2007-05-23 Egilberto Lombardi , Fabio Sciarrino , Sandu Popescu , Francesco De Martini

In quantum teleportation, the state of a single quantum system is disembodied into classical information and purely quantum correlations, to be later reconstructed onto a second system that has never directly interacted with the first one.…

Teleportation of a quantum state may be used for distributing entanglement between distant qubits in quantum communication and for quantum computation. Here we demonstrate the implementation of a teleportation protocol, up to the…

Quantum Physics · Physics 2012-08-20 M. Baur , A. Fedorov , L. Steffen , S. Filipp , M. P. da Silva , A. Wallraff

In addition to being a workhorse for modern quantum technologies, entanglement plays a key role in fundamental tests of quantum mechanics. The entanglement of photons in multiple levels, or dimensions, explores the limits of how large an…

Quantum Physics · Physics 2018-03-12 Manuel Erhard , Mehul Malik , Anton Zeilinger

Quantum teleportation provides a "disembodied" way to transfer quantum states from one object to another at a distant location, assisted by priorly shared entangled states and a classical communication channel. In addition to its…

Quantum Physics · Physics 2014-12-15 Xi-Lin Wang , Xin-Dong Cai , Zu-En Su , Ming-Cheng Chen , Dian Wu , Li Li , Nai-Le Liu , Chao-Yang Lu , Jian-Wei Pan

We develop a theory to teleport an unknown quantum state using entanglement between two distant parties. Our theory takes into account experimental limitations due to contribution of multi-photon pair production of parametric down…

Quantum Physics · Physics 2017-08-16 Syed Tahir Amin , Aeysha Khalique

Quantum Teleportation, the transfer of the state of one quantum system to another without direct interaction between both systems, is an important way to transmit information encoded in quantum states and to generate quantum correlations…

We report the experimental demonstration of two quantum networking protocols, namely quantum 1->3 telecloning and open-destination teleportation, implemented using a four-qubit register whose state is encoded in a high-quality two-photon…

Quantum Physics · Physics 2015-03-19 A. Chiuri , C. Greganti , M. Paternostro , G. Vallone , P. Mataloni

Quantum teleportation of qudits is revisited. In particular, we analyze the case where the quantum channel corresponds to a non-maximally entangled state and show that the success of the protocol is directly related to the problem of…

Quantum Physics · Physics 2009-11-10 L. Roa , A. Delgado , I. Fuentes-Guridi

Quantum teleportation enables a way to transmit an arbitrary qubit state from one place to an other. A standard scheme for teleportation in optical setup involve three photons, an entangled photon pair and a photon carrying quantum state to…

Quantum Physics · Physics 2025-02-10 Akshai T. Krishnan , Kanad Sengupta , S. P. Dinesh , C. M. Chandrashekar

In this letter, we report a realization of synchronization-free quantum teleportation and narrowband three-photon entanglement through interfering narrowband photon sources. Since both the single-photon and the entangled photon pair…

Quantum Physics · Physics 2009-11-05 Jian Yang , Xiao-Hui Bao , Han Zhang , Shuai Chen , Cheng-Zhi Peng , Zeng-Bing Chen , Jian-Wei Pan

Quantum state teleportation is a protocol where a shared entangled state is used as a quantum channel to transmit quantum information between distinct locations. Here we consider the task of estimating entanglement in teleportation…

Quantum Physics · Physics 2019-03-27 Ivan Šupić , Paul Skrzypczyk , Daniel Cavalcanti

Quantum teleportation is one of the essential primitives of quantum communication. We suggest that any quantum teleportation scheme can be characterized by its efficiency, i.e. how often it succeeds to teleport, its fidelity, i.e. how well…

Quantum Physics · Physics 2015-06-26 Dik Bouwmeester , Jian-Wei Pan , Harald Weinfurter , Anton Zeilinger

Quantum communication is based on the generation of quantum states and exploitation of quantum resources for communication protocols. Currently, photons are considered as the optimal carrier of information, because they enable long-distance…

Quantum Physics · Physics 2023-07-13 Liat Nemirovsky-Levy , Uzi Pereg , Mordechai Segev
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