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We propose a theoretical scheme for secure quantum key distribution network following the ideas in quantum dense coding. In this scheme, the server of the network provides the service for preparing and measuring the Bell states, and the…

Quantum Physics · Physics 2009-11-13 Chun-Yan Li , Hong-Yu Zhou , Yan Wang , Fu-Guo Deng

We investigate whether it is possible to teleport the coherence of an unknown quantum state from Alice to Bob by communicating a lesser number of classical bits in comparison to what is required for teleporting an unknown quantum state. We…

Quantum Physics · Physics 2023-11-02 Sohail , Arun K Pati , Vijeth Aradhya , Indranil Chakrabarty , Subhasree Patro

Recently, Zhao et al., (Int. J. Theor. Phys. 57, 516-522 (2018)) have proposed a scheme for quantum teleportation of an eight-qubit quantum state using a six qubit cluster state. In this comment, it's shown that the quantum resource…

Quantum Physics · Physics 2022-06-10 Mitali Sisodia , Anirban Pathak

We first consider quantum communication protocols between a sender Alice and a receiver Bob, which transfer Alice's quantum information to Bob by means of non-local resources, such as classical communication, quantum communication, and…

Quantum Physics · Physics 2018-09-07 Yonghae Lee , Soojoon Lee

We present a supervised secure entanglement sharing protocol via tripartite W states for faithful quantum teleportation. By guaranteeing a secure entanglement distribution in the charge of a third believed supervisor, quantum information of…

Quantum Physics · Physics 2007-11-19 Yue Li , Yu Liu

We consider novel implementation of quantum teleportation protocol of unknown qubit with entangled hybrid state. Coherent components of the entangled hybrid state displace the teleported qubit at the same absolute but opposite in sign…

Quantum Physics · Physics 2017-12-13 Sergey A. Podoshvedov

Secure multiparty computation enables collaborative computations across multiple users while preserving individual privacy, which has a wide range of applications in finance, machine learning and healthcare. Secure multiparty computation…

Quantum Physics · Physics 2024-11-08 Kai-Yi Zhang , An-Jing Huang , Kun Tu , Ming-Han Li , Chi Zhang , Wei Qi , Ya-Dong Wu , Yu Yu

The usefulness of the genuinely entangled six qubit state that was recently introduced by Borras et al. is investigated for the quantum teleportation of an arbitrary three qubit state and for quantum state sharing (QSTS) of an arbitrary two…

Quantum Physics · Physics 2009-11-13 Sayan Choudhury , Sreraman Muralidharan , Prasanta K. Panigrahi

Quantum teleportation is a process in which an unknown quantum state is transferred between two spatially separated subspaces of a bipartite quantum system which share an entangled state and communicate classically. In the case of photonic…

Quantum Physics · Physics 2015-09-02 Manuel Erhard , Hammam Qassim , Harjaspreet Mand , Ebrahim Karimi , Robert W Boyd

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…

Quantum Physics · Physics 2015-09-30 Alaa Sagheer , Hala Hamdoun

In this thesis, we have proposed some novel thought experiments involving foundations of quantum mechanics and quantum information theory, using quantum entanglement property. Concerning foundations of quantum mechanics, we have suggested…

Quantum Physics · Physics 2007-05-23 Omid Akhavan

Quantum cryptography has undergone substantial growth and development within the multi-disciplinary field of quantum information in recent years. The field is constantly advancing with new protocols being developed, security measures being…

Quantum Physics · Physics 2024-05-17 Jacopo Angeletti

A multiparty quantum secret report scheme is proposed with quantum encryption. The boss Alice and her $M$ agents first share a sequence of ($M$+1)-particle Greenberger--Horne--Zeilinger (GHZ) states that only Alice knows which state each…

Quantum Physics · Physics 2009-11-13 Fu-Guo Deng , Xi-Han Li , Chun-Yan Li , Ping Zhou , Yu-Jie Liang , Hong-Yu Zhou

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

Teleporting an unknown qubit state is a paradigmatic quantum information processing task revealing the advantage of quantum communication protocols over their classical counterpart. For a teleportation protocol using a Bell state as quantum…

Quantum Physics · Physics 2021-10-26 Mirko Consiglio , Louis Zammit Mangion , Tony John George Apollaro

Quantum communication holds the promise of creating disruptive technologies that will play an essential role in future communication networks. For example, the study of quantum communication complexity has shown that quantum communication…

We introduce a quantum teleportation scheme that can transfer a macroscopic spin coherent state between two locations. In the scheme a large number of copies of a qubit, such as realized in a coherent two-component Bose-Einstein condensate,…

Quantum Physics · Physics 2015-06-15 Alexey Pyrkov , Tim Byrnes

We consider the problem of bi-directional controlled quantum teleportation of information encoded in phase opposite coherent state among two distant partners Alice and Bob, with the consent of controller, Charlie. We use five-mode…

Quantum Physics · Physics 2021-12-15 Ravi Kamal Pandey , Phool Singh Yadav , Ranjana Prakash , Hari Prakash

We propose a scheme for quantum teleportation between two qubits, coupled sequentially to a cavity field. An implementation of the scheme is analyzed with superconducting qubits and a transmission line resonator, where measurements are…

Quantum Physics · Physics 2016-10-25 Eliska Greplova , Klaus Mølmer , Christian Kraglund Andersen

We demonstrate an experimental realization of remote state preparation via the quantum teleportation algorithm, using an entangled photon pair in the polarization degree of freedom as the quantum resource. The input state is encoded on the…

Quantum Physics · Physics 2015-06-17 Laura T. Knoll , Christian T. Schmiegelow , Miguel A. Larotonda