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Quantum networks hold promise for key distribution, private and distributed computing, and quantum sensing, among other applications. The scale of such networks for ground users is currently limited by one's ability to distribute…

Quantum Physics · Physics 2025-12-19 Yanxuan Shao , Saikat Guha , Adilson E. Motter

Quantum network facilitates the secure transmission of information between different users. Establishing communication links among multiple users in a scalable and efficient way is important for realizing a large-scale quantum network. Here…

Quantum Physics · Physics 2022-09-07 Wenjun Wen , Zhiyu Chen , Liangliang Lu , Wenhan Yan , Wenyi Xue , Peiyu Zhang , Yanqing Lu , Shining Zhu , Xiao-song Ma

Distributed quantum networks will allow users to perform tasks and to interact in ways which are not possible with present-day technology. Their implementation is a key challenge for quantum science and requires the development of…

Quantum Physics · Physics 2015-12-21 Andreas Reiserer , Gerhard Rempe

Granting information privacy is of crucial importance in our society, notably in fiber communication networks. Quantum cryptography provides a unique means to establish, at remote locations, identical strings of genuine random bits, with a…

Flexible-grid wavelength-division multiplexing is a powerful tool in lightwave communications for maximizing spectral efficiency. In the emerging field of quantum networking, the need for effective resource provisioning is particularly…

The distribution of entanglement via satellite links will drastically extend the reach of quantum networks. Highly efficient entangled photon sources are an essential requirement towards overcoming high channel loss and achieving practical…

Quantum Physics · Physics 2023-05-10 Emma Brambila , Rodrigo Gómez , Riza Fazili , Markus Gräfe , Fabian Steinlechner

The key requirement for quantum networking is the distribution of entanglement between nodes. Surprisingly, entanglement can be generated across a network without direct transfer - or communication - of entanglement. In contrast to…

We propose a scheme for optical entanglement distribution in quantum networks based on a quasi-deterministic entangled photon pair source. By combining heralded photonic Bell pair generation with spectral mode conversion to interface with…

Quantum Physics · Physics 2023-06-16 Kevin C. Chen , Prajit Dhara , Mikkel Heuck , Yuan Lee , Wenhan Dai , Saikat Guha , Dirk Englund

The prospect of using the quantum nature of light for secure communication keeps spurring the search and investigation of suitable sources of entangled-photons. Semiconductor quantum dots are arguably the most attractive. They can generate…

One of the key aims of quantum networks is the efficient distribution of multipartite entangled states among end users. While various architectures have been proposed, each comes with distinct advantages and limitations. Many designs depend…

Quantum Physics · Physics 2025-04-11 Daniel Bhatti , Kenneth Goodenough

The hybrid quantum network, a universal form of quantum network which is aimed for quantum communication and distributed quantum computation, is that the quantum nodes in it are realized with different physical systems. This universal form…

Distributing high-fidelity, high-rate entanglement over telecommunication infrastructure is one of the main paths towards large-scale quantum networks, enabling applications such as quantum encryption and network protection, blind quantum…

Efficient and faithful implementation of quantum information tasks, e.g., quantum computing, quantum communication and quantum metrology, requires robust and state-independent decoherence-suppressing measures to protect quantum information…

Quantum Physics · Physics 2008-08-01 Takashi Yamamoto , Kodai Hayashi , Sahin Kaya Ozdemir , Masato Koashi , Nobuyuki Imoto

We present a method for quantum entanglement distribution over a so-called code-division-multiple-access network, in which two pairs of users share the same quantum channel to transmit information. The main idea of this method is to use…

Quantum Physics · Physics 2015-11-04 Chang-long Zhu , Nan Yang , Yu-xi Liu , Franco Nori , Jing Zhang

We experimentally demonstrate a reconfigurable quantum network architecture suitable for integrating satellite links in metropolitan quantum networks. The network architecture is designed such that once a satellite is in range, it is…

Quantum Physics · Physics 2026-01-08 Stéphane Vinet , Duncan England , Chang-qing Xu , Thomas Jennewein

In view of real world applications of quantum information technologies, the combination of miniature quantum resources with existing fibre networks is a crucial issue. Among such resources, on-chip entangled photon sources play a central…

Quantum communication is developed owing to the theoretically proven security of quantum mechanics, which may become the main technique in future information security. However, most studies and implementations are limited to two or several…

Quantum Physics · Physics 2020-11-24 Xu Liu , Rong Xue , Heqing Wang , Hao Li , Xue Feng , Fang Liu , Kaiyu Cui , Zhen Wang , Lixing You , Yidong Huang , Wei Zhang

The past decade has seen tremendous progress in experimentally realizing the building blocks of quantum repeaters. Repeater architectures with multiplexed quantum memories have been proposed to increase entanglement distribution rates, but…

Quantum Physics · Physics 2022-10-26 Yuan Lee , Eric Bersin , Axel Dahlberg , Stephanie Wehner , Dirk Englund

Satellite-based quantum communication channels are important for ultra-long distances. Given the short duration of a satellite pass, it can be challenging to efficiently connect multiple users of a city-wide network while the satellite is…

Quantum Physics · Physics 2025-01-24 Stéphane Vinet , Ramy Tannous , Thomas Jennewein

The Quantum Internet, a network of quantum-enabled infrastructure, represents the next frontier in telecommunications, promising capabilities that cannot be attained by classical counterparts. A crucial step in realizing such large-scale…