Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:quant-ph/9806082 · Physical Review A

Quantum telecloning and multiparticle entanglement

Mio Murao, Daniel Jonathan, Martin Bodo Plenio, Vlatko Vedral

Published Jan 1, 1999• 585 citations
arXivHTMLPDF

Abstract

A quantum telecloning process combining quantum teleportation and optimal quantum cloning from one input to M outputs is presented. The scheme relies on the establishment of particular multiparticle entangled states, which function as multiuser quantum information channels. The entanglement structure of these states is analyzed and shown to be crucial for this type of information processing.

DOI
10.1103/physreva.59.156

Related papers

Manipulation of Entangled States for Quantum Information Processing

Sougato Bose, Susana F. Huelga, Daniel Jonathan +4 more

Entanglement manipulation, and especially Entanglement Swapping is at the heart of current work on quantum information processing, purification and quantum teleportation. We will discuss how it may be generalized to multiparticle systems and how this enables multi-user quantum cryptographic protocols to be developed. Our scheme allows us to establish multiparticle entanglement between particles which belong to distant users in a communication network through a prior distribution of Bell state singlets followed by local measurements. We compare our method for generating entanglement with existing schemes using simple quantum networks, and highlight the advantages and applications in cryptographic conferencing and in reading messages from more than one source through a single quantum measurement. We also discuss how entanglement leads to the idea of ‘telecloning’, in which a teleportation-like protocol can be found which reproduces the output of an optimal quantum cloning machine. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Kluwer Academic Publishers eBooks•Dec 19, 2005•3 citations

Universal quantum teleflipping and telecloning of qubit

Yan‐Ling Li, Jian Feng, Meng Xiang-Guo +2 more

A scheme combining three processes of quantum teleportation, optimal universal quantum flipping and optimal universal quantum cloning for universal teleflipping and telecloning of arbitrary qubit is proposed. When a particular four-particle entangled state shared by the sender and three spatially separated receivers is used as quantum information channel, after the sender's Bell measurement, class ical communication and each receiver's local unitary operation, one receiver can get one orthogonal complementing state of the original unknown state with the o ptimal fidelity of 2/3, the other two receivers can respectively get one copy of the original unknown state with the optimal fidelity of 5/6. This scheme implem ents the universal quantum teleflipping and telecloning simultaneously with corr esponding optimal fidelity by using the reduced entanglement. The key to realizi ng this scheme is the construction of the particular four-particle entangled sta te shared by the sender and three receivers used as quantum information channel. The entanglement structure of the special four-particle entangled state is anal yzed.

Acta Physica Sinica•Jan 1, 2007•2 citations

Quantum-information distribution via entanglement

Mio Murao, Martin Bodo Plenio, Vlatko Vedral

We present a generalization of quantum teleportation that distributes quantum information from a sender's d-level particle to ${N}_{o}$ particles held by remote receivers via an initially shared multiparticle entangled state. This entangled state functions as a multiparty quantum information distribution channel between the sender and the receivers. The structure of the distribution channel determines how quantum information is processed. Our generalized teleportation scheme allows multiple receivers at arbitrary locations, and can be used for applications such as optimal quantum information broadcasting, asymmetric telecloning, and quantum error correction.

arXiv:quant-ph/9909031•Physical Review A•Feb 16, 2000•90 citations

Telecloning of unknown N-dimensional quantum state

LI De-chao

An N-dimensional quantum telecloning process combining quantum teleportation and optimal quantum cloning is presented.The scheme requires less entanglement between the two sides,representing a much more efficient than the approach where Alice first clones her particle and then teleports these states.

Computer Engineering and Applications Journal•Jan 1, 2008•0 citations

Asymmetric quantum telecloning of multiqubit states

Lin Chen, Yi-Xin Chen

We propose a scheme of 1$\to$2 optimal universal asymmetric quantum telecloning of pure multiqubit states. In particular, we first investigate the asymmetric telecloning of arbitrary 2-qubit states and then extend it to the case of multiqubit system. Many figures of merit for the telecloning process are checked, including the entanglement of the quantum channel and fidelities of the clones. Our scheme can be used for the 1$\to$4 universal telecloning of mixed multiqubit states.

arXiv:quant-ph/0610249•Oct 30, 2006•1 citation

Asymmetric quantum teleclonging of multiqubit states

Limei Chen, Y.-X. Chen

A scheme of 1$\rightarrow$2 optimal universal asymmetric quantum telecloning for pure multiqubit states is proposed. We first investigate the telecloning of arbitrary 2-qubit states and then extend it to the case of multiqubit system. We discuss the scheme in terms of the quantum channels and fidelities of clones, as well as the entanglement of states in the telecloning.

Quantum Information and Computation•Nov 1, 2007•7 citations
A quantum telecloning process combining quantum teleportation and optimal quantum cloning from one input to M outputs is presented. The scheme relies on the establishment of particular multiparticle entangled states, which function as multiuser quantum information channels. The entanglement structure of these states is analyzed and shown to be crucial for this type of information processing.
Entanglement manipulation, and especially Entanglement Swapping is at the heart of current work on quantum information processing, purification and quantum teleportation. We will discuss how it may be generalized to multiparticle systems and how this enables multi-user quantum cryptographic protocols to be developed. Our scheme allows us to establish multiparticle entanglement between particles which belong to distant users in a communication network through a prior distribution of Bell state singlets followed by local measurements. We compare our method for generating entanglement with existing schemes using simple quantum networks, and highlight the advantages and applications in cryptographic conferencing and in reading messages from more than one source through a single quantum measurement. We also discuss how entanglement leads to the idea of ‘telecloning’, in which a teleportation-like protocol can be found which reproduces the output of an optimal quantum cloning machine. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
A scheme combining three processes of quantum teleportation, optimal universal quantum flipping and optimal universal quantum cloning for universal teleflipping and telecloning of arbitrary qubit is proposed. When a particular four-particle entangled state shared by the sender and three spatially separated receivers is used as quantum information channel, after the sender's Bell measurement, class ical communication and each receiver's local unitary operation, one receiver can get one orthogonal complementing state of the original unknown state with the o ptimal fidelity of 2/3, the other two receivers can respectively get one copy of the original unknown state with the optimal fidelity of 5/6. This scheme implem ents the universal quantum teleflipping and telecloning simultaneously with corr esponding optimal fidelity by using the reduced entanglement. The key to realizi ng this scheme is the construction of the particular four-particle entangled sta te shared by the sender and three receivers used as quantum information channel. The entanglement structure of the special four-particle entangled state is anal yzed.
We present a generalization of quantum teleportation that distributes quantum information from a sender's d-level particle to No{N}_{o}No​ particles held by remote receivers via an initially shared multiparticle entangled state. This entangled state functions as a multiparty quantum information distribution channel between the sender and the receivers. The structure of the distribution channel determines how quantum information is processed. Our generalized teleportation scheme allows multiple receivers at arbitrary locations, and can be used for applications such as optimal quantum information broadcasting, asymmetric telecloning, and quantum error correction.
We propose a scheme of 1$\to2optimaluniversalasymmetricquantumtelecloningofpuremultiqubitstates.Inparticular,wefirstinvestigatetheasymmetrictelecloningofarbitrary2−qubitstatesandthenextendittothecaseofmultiqubitsystem.Manyfiguresofmeritforthetelecloningprocessarechecked,includingtheentanglementofthequantumchannelandfidelitiesoftheclones.Ourschemecanbeusedforthe12 optimal universal asymmetric quantum telecloning of pure multiqubit states. In particular, we first investigate the asymmetric telecloning of arbitrary 2-qubit states and then extend it to the case of multiqubit system. Many figures of merit for the telecloning process are checked, including the entanglement of the quantum channel and fidelities of the clones. Our scheme can be used for the 12optimaluniversalasymmetricquantumtelecloningofpuremultiqubitstates.Inparticular,wefirstinvestigatetheasymmetrictelecloningofarbitrary2−qubitstatesandthenextendittothecaseofmultiqubitsystem.Manyfiguresofmeritforthetelecloningprocessarechecked,includingtheentanglementofthequantumchannelandfidelitiesoftheclones.Ourschemecanbeusedforthe1\to$4 universal telecloning of mixed multiqubit states.