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 …
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 …
Gaussian states of multimode light, such as squeezed states and cluster states, are scalable …
Scalable photonic platform for real-time quantum reservoir computing
Quantum reservoir computing (QRC) exploits the information-processing capabilities of
quantum systems to solve nontrivial temporal tasks, improving over their classical …
quantum systems to solve nontrivial temporal tasks, improving over their classical …
Noiseless linear amplifiers for multimode states
The entanglement structure between different frequency components within broadband
quantum light pulses, forged at entanglement creation, represents a promising route to the …
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 …
amplification (NLA) of the Fock state. The hyper-encoding technology which encodes …
Multimode CV‐QKD with non‐Gaussian operations
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 …
to increase the secret key rate for certain CV‐QKD protocols. However, most previous …
Global entanglement distribution with multi-mode non-Gaussian operations
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 …
enhance the entanglement of quantum states. However, most previous studies on such …
Phase-stable and selectable repetition-rate division of an optical frequency comb
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 …
frequency comb (OFC) by down-picking a train of pulses from the fundamental OFC phase …
Closing the detection loophole in nonlinear entanglement witnesses
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 …
nonideal efficiencies, which may then lead to nontrivial implications. We show how it is …
Detection loophole in measurement-device-independent entanglement witnesses
There always exists an entanglement witness for every entangled quantum state. Negativity
of the expectation value of an entanglement witness operator guarantees entanglement of …
of the expectation value of an entanglement witness operator guarantees entanglement of …