Teleportation and dense coding via a multiparticle quantum channel of the GHZ-class

Gorbachev, V. N.; Trubilko, A. I.; Rodichkina, A. A.; Zhiliba, A. I.

doi:10.26421/qic2.5-4

Cited by 13 publications

(12 citation statements)

References 12 publications

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“…Provided Alice and Bob share |GHZ , such that the first qubit belongs to Bob and the other two qubits belong to Alice, the following protocol describes superdense coding with GHZ as in [7,17]:…”

Section: Super Dense Coding With Ghz Protocolmentioning

confidence: 99%

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Superdense Coding with GHZ and Quantum Key Distribution with W in the ZX-calculus

Hillebrand

2012

Electron. Proc. Theor. Comput. Sci.

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Quantum entanglement is a key resource in many quantum protocols, such as quantum teleportation and quantum cryptography. Yet entanglement makes protocols presented in Dirac notation difficult to verify. This is why Coecke and Duncan have introduced a diagrammatic language for quantum protocols, called the ZX-calculus [11]. This diagrammatic notation is both intuitive and formally rigorous. It is a simple, graphical, high level language that emphasises the composition of systems and naturally captures the essentials of quantum mechanics. In the author's MSc thesis [18] it has been shown for over 25 quantum protocols that the ZX-calculus provides a relatively easy and more intuitive presentation. Moreover, the author embarked on the task to apply categorical quantum mechanics on quantum security; earlier works did not touch anything but Bennett and Brassard's quantum key distribution protocol, BB84. Two of the protocols in [18], namely superdense coding with the Greenberger-Horne-Zeilinger state and quantum key distribution with the W -state, will be presented in this paper.

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Section: Super Dense Coding With Ghz Protocolmentioning

confidence: 99%

“…In an SDC protocol a number of classical bits is transfered by transferring fewer qubits. In this paper SDC with GHZ as described in [7,17] will be presented in the ZX-calculus. Then a QKD protocol making use of the W -state will be presented.…”

Section: Introductionmentioning

confidence: 99%

Superdense Coding with GHZ and Quantum Key Distribution with W in the ZX-calculus

Hillebrand

2012

Electron. Proc. Theor. Comput. Sci.

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“…Recently, quantum teleportation has been paid much attention both theoretically and experimentally since it could make quantum communication essentially instant [6]. Most of the current quantum teleportation procedures achieve teleportation of non-accelerated information through nonaccelerated states [7][8][9]. With the rapid development in communication domain, there is an urgent need to develop new procedures achieve teleportation of either accelerated or nonaccelerated information through channel based on accelerated multi qubit entangled states with a high level of security and efficiency.…”

Section: Introductionmentioning

confidence: 99%

Teleportation with Multiple Accelerated Partners

Sagheer

Hamdoun

Metwally

2015

Commun. Theor. Phys.

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As the current revolution in communication is underway, quantum teleportation can increase the level of security in quantum communication applications. In this paper, we present a quantum teleportation procedure that capable to teleport either accelerated or non-accelerated information through different quantum channels. These quantum channels are based on accelerated multi-qubit states, where each qubit of each of these channels represent a partner. Namely, these states are the the W state, Greenberger-Horne-Zeilinger (GHZ) state, and the GHZ-like state. Here, we show that the fidelity of teleporting accelerated information is higher than the fidelity of teleporting non-accelerated information, both through a quantum channel that is based on accelerated state. Also, the comparison among the performance of these three channels shows that the degree of fidelity depends on type of the used channel, type of the measurement, and value of the acceleration. The result of comparison concludes that teleporting information through channel that is based on the GHZ state is more robust than teleporting information through channels that are based on the other two states. For future work, the proposed procedure can be generalized later to achieve communication through a wider quantum network.

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“…The study of quantum information theory is an extended research in recent years. In the quantum information theory, the entanglement is a key physical property and has been employed in many applications (e.g., quantum teleportation [1,2,3,4,5,6,7,8,9,10,11,12,13,14], quantum key distribution [15,16,17,18,19,20], quantum secret sharing [21,22,23,24,25,26,27,28,29,30] and etc.). Among these applications, quantum teleportation is an epochal application, in which an arbitrary particle can be transmitted to a distant place through the property of entanglement and some auxiliary classical communications without using any physical quantum channel.…”

Section: Introductionmentioning

confidence: 99%

“…And then Alice can use the entanglement of EPR state to teleport an arbitrary single particle (α |0 + β |1 ) to Bob. Since Bennett and Brassard's teleportation protocol [7], many quantum teleportation protocols [1,2,3,4,5,6,8,9,10,11,12,13,14] have been introduced to teleport various qubits via different entanglement quantum state (e.g., GHZ class state, W class state, and etc.) subsequently.…”

Section: Introductionmentioning

confidence: 99%

Quantum Teleportation with Remote Rotation on a GHZ State

Hsu¹,

Chen²,

Tsai³

et al. 2013

Int J Theor Phys

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This study proposes a pioneering protocol for teleporting an arbitrary single particle state and simultaneously performing a rotation operation on that particle. There are protocols for either only teleporting particles or only remotely controlling quantum particles. If one has to remotely control a teleported quantum, then he/she has to first do the quantum teleportation and then perform the remote control on the teleported quantum. Both operations were done separately on two sets of entanglements. However, this intuitive solution is inefficient because many resources are wasted. Therefore, the study attempts to complete both operations using only one Greenberger-Horne-Zeilinger (GHZ) state. * Corresponding Author

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Teleportation and dense coding via a multiparticle quantum channel of the GHZ-class

Cited by 13 publications

References 12 publications

Superdense Coding with GHZ and Quantum Key Distribution with W in the ZX-calculus

Superdense Coding with GHZ and Quantum Key Distribution with W in the ZX-calculus

Teleportation with Multiple Accelerated Partners

Quantum Teleportation with Remote Rotation on a GHZ State

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