Quantum repeaters: From quantum networks to the quantum internet

K Azuma, SE Economou, D Elkouss, P Hilaire… - Reviews of Modern …, 2023 - APS
A quantum internet is the holy grail of quantum information processing, enabling the
deployment of a broad range of quantum technologies and protocols on a global scale …

The evolution of quantum secure direct communication: on the road to the qinternet

D Pan, GL Long, L Yin, YB Sheng… - … Surveys & Tutorials, 2024 - ieeexplore.ieee.org
Communication security has to evolve to a higher plane in the face of the threat from the
massive computing power of the emerging quantum computers. Quantum secure direct …

Quantum secure direct communication with private dense coding using a general preshared quantum state

J Wu, GL Long, M Hayashi - Physical Review Applied, 2022 - APS
We study quantum secure direct communication using a general preshared quantum state
and a generalization of dense coding. In this scenario, Alice is allowed to apply a unitary …

Fundamental limitations on distillation of quantum channel resources

B Regula, R Takagi - Nature Communications, 2021 - nature.com
Quantum channels underlie the dynamics of quantum systems, but in many practical settings
it is the channels themselves that require processing. We establish universal limitations on …

Resource theory of asymmetric distinguishability for quantum channels

X Wang, MM Wilde - Physical Review Research, 2019 - APS
This paper develops the resource theory of asymmetric distinguishability for quantum
channels, generalizing the related resource theory for states [Matsumoto, arXiv: 1010.1030 …

Universal limitations on quantum key distribution over a network

S Das, S Bäuml, M Winczewski, K Horodecki - Physical Review X, 2021 - APS
We consider the distribution of secret keys, both in a bipartite and a multipartite (conference)
setting, via a quantum network and establish a framework to obtain bounds on the …

Dynamical entanglement

G Gour, CM Scandolo - Physical Review Letters, 2020 - APS
Unlike the entanglement of quantum states, very little is known about the entanglement of
bipartite channels, called dynamical entanglement. Here we work with the partial transpose …

Entanglement of a bipartite channel

G Gour, CM Scandolo - Physical Review A, 2021 - APS
The most general quantum object that can be shared between two distant parties is a
bipartite channel, as it is the basic element to construct all quantum circuits. In general …

Geometric Rényi divergence and its applications in quantum channel capacities

K Fang, H Fawzi - Communications in Mathematical Physics, 2021 - Springer
Having a distance measure between quantum states satisfying the right properties is of
fundamental importance in all areas of quantum information. In this work, we present a …

Resource theory of entanglement for bipartite quantum channels

S Bäuml, S Das, X Wang, MM Wilde - arXiv preprint arXiv:1907.04181, 2019 - arxiv.org
The traditional perspective in quantum resource theories concerns how to use free
operations to convert one resourceful quantum state to another one. For example, a …