Results 61 to 70 of about 2,245 (174)

Transformation of Bell states using linear optics

open access: yesPhysics Open
Bell states form a complete set of four maximally polarization entangled two-qubit quantum state. Being a key ingredient of many quantum applications such as entanglement based quantum key distribution protocols, superdense coding, quantum teleportation,
Sarika Mishra, R.P. Singh
doaj   +1 more source

Superdense coding for quantum networking environments

open access: yesAdvances in Photonics of Quantum Computing, Memory, and Communication XI, 2018
Quantum networks provide a versatile infrastructure for communication, computing, and sensing with quantum information. Novel sources and detectors for transmitting and receiving quantum states are critical elements in the development and eventual deployment of robust quantum networks. Alongside performance, the compatibility of quantum network devices
Brian P. Williams   +2 more
openaire   +2 more sources

Weltweite Vernetzung der Quantentechnologien: Quantenkommunikation via Satellit

open access: yesPhysik in unserer Zeit, Volume 56, Issue 3, Page 116-123, May 2025.
Quantentechnologien sind auf dem Weg, die Welt zu verändern. Die weltweite Vernetzung kann ihr Potenzial vervielfachen und neue Anwendungsmöglichkeiten eröffnen. Zusammenfassung Die Quantenschlüsselverteilung ist eine der fortschrittlichsten Quantentechnologien. Entsprechende Komponenten sind kommerziell erhältlich.
Kai Bongs   +5 more
wiley   +1 more source

Computing quantum discord is NP-complete

open access: yesNew Journal of Physics, 2014
We study the computational complexity of quantum discord (a measure of quantum correlation beyond entanglement), and prove that computing quantum discord is NP-complete.
Yichen Huang
doaj   +1 more source

The apex of the family tree of protocols: Optimal rates and resource inequalities [PDF]

open access: yes, 2011
We establish bounds on the maximum entanglement gain and minimum quantum communication cost of the Fully Quantum Slepian-Wolf protocol in the one-shot regime, which is considered to be at the apex of the existing family tree in Quantum Information Theory.
Datta, Nilanjana, Hsieh, Min-Hsiu
core   +1 more source

Enhance Capacity Region of Multi‐Class IIoT Network by Applying Entanglement Assistance Protocol

open access: yesIET Quantum Communication, Volume 6, Issue 1, January/December 2025.
ABSTRACT In the Industrial Internet of Things (IIoT) context, heterogeneous IIoT nodes need diverse performance requirements, including throughput and quality of service (QoS). These IIoT nodes transmit data over a common shared communication medium. The existing critical challenge arises in efficiently scheduling access to this shared medium among a ...
Doaa Subhi, Laszlo Bacsardi
wiley   +1 more source

High‐Dimensional Quantum Communication: Benefits, Progress, and Future Challenges

open access: yesAdvanced Quantum Technologies, Volume 2, Issue 12, December 2019., 2019
Quantum communication with states living in d‐dimensional Hilbert spaces, qudits, yields great benefits. However, qudits generation, transmission, and detection is not a simple task to accomplish. This review presents the state‐of‐the‐art on the generation, propagation, and measurement of high‐dimensional quantum states, highlighting their advantages ...
Daniele Cozzolino   +3 more
wiley   +1 more source

Approaches to Quantum Remote Memory Attestation

open access: yesIET Quantum Communication, Volume 6, Issue 1, January/December 2025.
We provide a comprehensive analysis of methods for preforming remote memory attestation using quantum communication, and use this to create an improved method. ABSTRACT In this article, we uncover flaws and pitfalls of a quantum‐based remote memory attestation procedure for Internet of things devices.
Jesse Laeuchli, Rolando Trujillo Rasua
wiley   +1 more source

Virtual Correlations in Single Qutrit

open access: yesAdvances in Mathematical Physics, Volume 2016, Issue 1, 2016., 2016
We construct the positive invertible map of the mixed states of a single qutrit onto the antisymmetrized bipartite qutrit states (quasifermions). It is shown that using this one‐to‐one correspondence between qutrit states and states of two three‐dimensional quasifermions one may attribute hidden entanglement to a single mixed state of qutrit.
Alexey A. Strakhov   +2 more
wiley   +1 more source

Realizing ultrahigh capacity quantum superdense coding on quantum photonic chip

open access: yesnpj Quantum Information
Quantum superdense coding provides a compelling solution to enhance the channel capacity compared with classical coding, which plays a vital role in quantum networks.
Yuan Li   +11 more
doaj   +1 more source

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