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 …

Non-Gaussian quantum states and where to find them

M Walschaers - PRX quantum, 2021 - APS
Gaussian states have played an important role in the physics of continuous-variable
quantum systems. They are appealing for the experimental ease with which they can be …

Non-Gaussian quantum states of a multimode light field

YS Ra, A Dufour, M Walschaers, C Jacquard, T Michel… - Nature Physics, 2020 - nature.com
Advanced quantum technologies require scalable and controllable quantum resources,.
Gaussian states of multimode light, such as squeezed states and cluster states, are scalable …

Photon-by-photon quantum light state engineering

N Biagi, S Francesconi, A Zavatta, M Bellini - Progress in Quantum …, 2022 - Elsevier
The ability to manipulate light at the level of single photons, its elementary excitation quanta,
has recently made it possible to produce a rich variety of tailor-made quantum states and …

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 …

Non-Gaussian nature and entanglement of spontaneous parametric nondegenerate triple-photon generation

D Zhang, Y Cai, Z Zheng, D Barral, Y Zhang, M Xiao… - Physical Review A, 2021 - APS
We theoretically demonstrate through numerical methods that the triple-photon state
generated by three-photon spontaneous parametric down-conversion is a non-Gaussian …

Quantum speed limit via the trajectory ensemble

X Hu, S Sun, Y Zheng - Physical Review A, 2020 - APS
In this paper, we present the theoretical framework of quantum speed limits (QSLs) in terms
of trajectory ensembles in phase space. This indicates that the QSL can be thought of as the …

Quantum repeaters and teleportation via entangled phase-modulated multimode coherent states

R Goncharov, AD Kiselev, ES Moiseev, E Samsonov… - Physical Review …, 2023 - APS
We present a scheme of quantum repeater that uses entangled multimode coherent states
that are obtained by electro-optic modulation of symmetric and antisymmetric Schrödinger …

Generation of entangled Schrödinger cat state of two macroscopic mirrors

B Xiong, X Li, SL Chao, Z Yang, WZ Zhang, L Zhou - Optics Express, 2019 - opg.optica.org
We propose a scheme to generate the macroscopic entangled Schrödinger cat state of two
mechanical resonators in a hybrid optomechanical system by introducing modulated photon …

Homodyne measurement with a Schrödinger cat state as a local oscillator

J Combes, AP Lund - Physical Review A, 2022 - APS
Homodyne measurements are a widely used quantum measurement. Using a coherent state
of large amplitude as the local oscillator, it can be shown that the quantum homodyne …