Hybrid discrete-and continuous-variable quantum information

UL Andersen, JS Neergaard-Nielsen, P Van Loock… - Nature Physics, 2015 - nature.com
Research in quantum information processing has followed two different directions: the use of
discrete variables (qubits) and that of high-dimensional, continuous-variable Gaussian …

Production and applications of non-Gaussian quantum states of light

AI Lvovsky, P Grangier, A Ourjoumtsev, V Parigi… - arXiv preprint arXiv …, 2020 - arxiv.org
This review covers recent theoretical and experimental efforts to extend the application of
the continuous-variable quantum technology of light beyond" Gaussian" quantum states …

Enhancing quantum teleportation efficacy with noiseless linear amplification

J Zhao, H Jeng, LO Conlon, S Tserkis, B Shajilal… - Nature …, 2023 - nature.com
Quantum teleportation constitutes a fundamental tool for various applications in quantum
communication and computation. However, state-of-the-art continuous-variable quantum …

Secure continuous variable teleportation and Einstein-Podolsky-Rosen steering

Q He, L Rosales-Zárate, G Adesso, MD Reid - Physical Review Letters, 2015 - APS
We investigate the resources needed for secure teleportation of coherent states. We extend
continuous variable teleportation to include quantum teleamplification protocols that allow …

Generation of hybrid entanglement of light

H Jeong, A Zavatta, M Kang, SW Lee, LS Costanzo… - Nature …, 2014 - nature.com
Entanglement between quantum and classical objects is of special interest in the context of
fundamental studies of quantum mechanics and potential applications for quantum …

Remote preparation of optical cat states based on Gaussian entanglement

D Han, F Sun, N Wang, Y Xiang… - Laser & Photonics …, 2023 - Wiley Online Library
Remote state preparation enables one to prepare and manipulate quantum state non‐
locally. As an essential quantum resource, optical cat state is usually prepared locally by …

Hybrid quantum key distribution network

S Ren, Y Wang, X Su - Science China Information Sciences, 2022 - Springer
Quantum key distribution (QKD) is now moving toward a scalable and secure QKD network,
which establishes secret keys among network users. The continuous-variable (CV) and …

Ideal quantum teleamplification up to a selected energy cutoff using linear optics

JJ Guanzon, MS Winnel, AP Lund, TC Ralph - Physical Review Letters, 2022 - APS
We introduce a linear optical technique that can implement ideal quantum teleamplification
up to the n th Fock state, where n can be any positive integer. Here teleamplification consists …

Quantifying quantum coherence of optical cat states

M Zhang, H Kang, M Wang, F Xu, X Su… - Photonics Research, 2021 - opg.optica.org
The optical cat state plays an essential role in quantum computation and quantum
metrology. Here, we experimentally quantify quantum coherence of an optical cat state by …

Generalized quantum scissors for noiseless linear amplification

MS Winnel, N Hosseinidehaj, TC Ralph - Physical Review A, 2020 - APS
We generalize the concept of optical state truncation and noiseless linear amplification to
enable truncation of the Fock-state expansion of an optical state to higher order and to …