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 …

Scalable photonic platform for real-time quantum reservoir computing

J García-Beni, GL Giorgi, MC Soriano, R Zambrini - Physical Review Applied, 2023 - APS
Quantum reservoir computing (QRC) exploits the information-processing capabilities of
quantum systems to solve nontrivial temporal tasks, improving over their classical …

Noiseless linear amplifiers for multimode states

M He, R Malaney, BA Burnett - Physical Review A, 2021 - APS
The entanglement structure between different frequency components within broadband
quantum light pulses, forged at entanglement creation, represents a promising route to the …

Quantum scissors for noiseless linear amplification of polarization frequency hyper-encoded coherent state

W Zhong, YP Li, YB Sheng, L Zhou - Europhysics Letters, 2022 - iopscience.iop.org
Quantum scissor (QS) is a powerful tool to realize the optical truncation and noiseless linear
amplification (NLA) of the Fock state. The hyper-encoding technology which encodes …

Multimode CV‐QKD with non‐Gaussian operations

M He, R Malaney, J Green - Quantum Engineering, 2020 - Wiley Online Library
Non‐Gaussian operations have been studied intensively in recent years due to their ability
to increase the secret key rate for certain CV‐QKD protocols. However, most previous …

Global entanglement distribution with multi-mode non-Gaussian operations

M He, R Malaney, J Green - IEEE Journal on Selected Areas in …, 2020 - ieeexplore.ieee.org
Non-Gaussian operations have been studied intensively in recent years due to their ability to
enhance the entanglement of quantum states. However, most previous studies on such …

Phase-stable and selectable repetition-rate division of an optical frequency comb

TS Khwaja, TH Yoon - Physical Review A, 2020 - APS
We present a phase-stable and selectable repetition-rate (f rep) divider (PSRD) of an optical
frequency comb (OFC) by down-picking a train of pulses from the fundamental OFC phase …

Closing the detection loophole in nonlinear entanglement witnesses

K Sen, S Das, U Sen - Physical Review A, 2019 - APS
Detectors in the laboratory are often unlike their ideal theoretical cousins. They have
nonideal efficiencies, which may then lead to nontrivial implications. We show how it is …

Detection loophole in measurement-device-independent entanglement witnesses

K Sen, C Srivastava, S Mal, A Sen, U Sen - Physical Review A, 2021 - APS
There always exists an entanglement witness for every entangled quantum state. Negativity
of the expectation value of an entanglement witness operator guarantees entanglement of …