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The development of a future, global quantum communication network (or quantum internet) will enable high rate private communication and entanglement distribution over very long distances. However, the large-scale performance of ground-based…

量子物理 · 物理学 2022-03-29 Cillian Harney , Stefano Pirandola

Non-Gaussian continuous-variable quantum states represent a pivotal resource in many quantum information protocols. Production of such states can occur through photonic subtraction process either at the transmitter side prior to sending a…

量子物理 · 物理学 2019-10-31 Mingjian He , Robert Malaney , Jonathan Green

In this work we analyse three quantum communication schemes for the generation of Gaussian entanglement between two ground stations. Communication occurs via a satellite over two independent atmospheric fading channels dominated by…

量子物理 · 物理学 2016-05-03 Nedasadat Hosseinidehaj , Robert Malaney

In this Letter, we propose to detect the interaction of a hypothetical coherently evolving cosmological scalar field with an orbital network of quantum sensors, focusing on the GPS satellite network as a test example. Cosmological…

广义相对论与量子宇宙学 · 物理学 2024-08-22 Yu Li , Ruolin Liu , Conner Dailey , Niayesh Afshordi

Quantum teleportation is an essential capability for quantum networks, allowing the transmission of quantum bits (qubits) without a direct exchange of quantum information. Its implementation between distant parties requires teleportation of…

量子物理 · 物理学 2023-04-10 Dario Lago-Rivera , Jelena V. Rakonjac , Samuele Grandi , Hugues de Riedmatten

Photon loss is the fundamental issue towards the development of quantum communication. We present a proposal to mitigate photon loss even at large distances and hence to create a global-scale quantum communication architecture. In this…

量子物理 · 物理学 2023-09-01 Sumit Goswami , Sayandip Dhara

We propose a method for quantum state transfer from one atom laser beam to another via an intermediate optical field, using Raman incoupling and outcoupling techniques. Our proposal utilises existing experimental technologies to teleport…

量子物理 · 物理学 2007-06-13 A. S. Bradley , M. K. Olsen , S. A. Haine , J. J. Hope

Recent experimental results and proposals towards implementation of quantum teleportation are discussed. It is proved that reliable (theoretically, 100% probability of success) teleportation cannot be achieved using the methods applied in…

量子物理 · 物理学 2009-10-31 L. Vaidman , N. Yoran

The increasing demand for the realization of global-scale quantum communication services necessitates critical investigation for a practical quantum secure communication network that relies on full-time all-location coverage. In this…

As the amount of information to be transmitted from deep-space rapidly increases, the radiofrequency technology has become a bottleneck in space communications. RF is already limiting the scientific outcome of deep-space missions and could…

天体物理仪器与方法 · 物理学 2016-04-28 Alberto Carrasco-Casado , Jose Manuel Sanchez-Pena , Ricardo Vergaz

Holographic MIMO is a spatially-constrained MIMO system with a massive number of antennas, possibly thought of, in its ultimate form, as a spatially-continuous electromagnetic aperture. Accurate and tractable channel modeling is critical to…

信息论 · 计算机科学 2020-12-15 Andrea Pizzo , Thomas Marzetta , Luca Sanguinetti

Future telecommunication systems are expected to co-exist with different backhauling nodes such as terrestrial or satellite systems. Satellite connectivity can add flexibility to backhauling networks and provide an alternative route for…

网络与互联网体系结构 · 计算机科学 2019-11-14 Engin Zeydan , Yekta Turk

The wireless research community has expressed major interest in the sub-terahertz band for enabling mobile communications in future wireless networks. The sub-terahertz band offers a large amount of available bandwidth and, therefore, the…

信息论 · 计算机科学 2023-02-08 Marco Di Renzo , Davide Dardari , Nicolo' Decarli

The measurement-device-independent (MDI) QKD is considered to be an alternative to overcome the currently trusted satellite paradigm. However, the feasibility of the space-based MDI-QKD remains unclear in terms of the factors: the high-loss…

量子物理 · 物理学 2021-05-26 Xingyu Wang , Chen Dong , Shanghong Zhao , Yong Liu , Xiaowen Liu , Haonan Zhu

The fast motion of Low Earth Orbit (LEO) satellites causes the propagation channel to vary rapidly, and its behavior is strongly shaped by the surrounding environment, especially at low elevation angles where signals are highly susceptible…

网络与互联网体系结构 · 计算机科学 2026-03-27 Jingyi Tian , Lin Cai

Qubit transmission protocols are presently point-to-point, and thus restrictive in their functionality. A quantum router is necessary for the quantum Internet to become a reality. We present a quantum router design based on teleportation,…

网络与互联网体系结构 · 计算机科学 2019-03-19 Bernardo A. Huberman , Bob Lund

It is suggested that modern techniques of radio ranging when applied to study the motion of the Moon, can improve the accuracy of tests of relativistic gravitation obtained with currently operating laser ranging techniques. Other auxillary…

天体物理学 · 物理学 2007-05-23 R. Cowsik

To meet the urgent need for sub-second link establishment in inter-satellite and satellite-to-ground free space optical communication, this paper presents a periscope-type optical communication terminal and a ground-based verification…

光学 · 物理学 2025-08-13 Jianmin Wang , Zhiqian Su , Bin Li , Weiran Zheng , Haochun Gao

The future of long-distance quantum communication relies on the availability of quantum memory, i.e. devices that allow temporal storage of quantum information. We review research related to quantum state storage based on a photon-echo…

量子物理 · 物理学 2008-10-02 W. Tittel , M. Afzelius , R. L. Cone , T. Chanelière , S. Kröll , S. A. Moiseev , M. Sellars