594 citations · 6.8k across the 91 of their papers we have counts for
6 papers · 1 filter
Comparing different approaches for generating random numbers device-independently using a photon pair source
V. Caprara Vivoli, P. Sekatski, J. -D. Bancal +6
What is the most efficient way to generate random numbers device-independently using a photon pair source based on spontaneous parametric down conversion (SPDC)? We consider this q…
Witnessing single-photon entanglement with local homodyne measurements: analytical bounds and robustness to losses
Melvyn Ho, Olivier Morin, Jean-Daniel Bancal +3
Single-photon entanglement is one of the primary resources for quantum networks, including quantum repeater architectures. Such entanglement can be revealed with only local homodyn…
Linking Measures for Macroscopic Quantum States via Photon-Spin Mapping
F. Fröwis, N. Sangouard, N. Gisin
We review and compare several measures that identify quantum states that are "macroscopically quantum". These measures were initially formulated either for photonic systems or spin…
Nonlinear interaction between two heralded single photons
T. Guerreiro, A. Martin, B. Sanguinetti +7
Harnessing nonlinearities strong enough to allow two single photons to interact with one another is not only a fascinating challenge but is central to numerous advanced application…
How difficult it is to prove the quantumness of macroscropic states?
Pavel Sekatski, Nicolas Gisin, Nicolas Sangouard
General wisdom tells us that if two quantum states are ``macroscopically distinguishable'' then their superposition should be hard to observe. We make this intuition precise and ge…
Macroscopic optomechanics from displaced single-photon entanglement
Pavel Sekatski, Markus Aspelmeyer, Nicolas Sangouard
Displaced single-photon entanglement is a simple form of optical entanglement, obtained by sending a photon on a beamsplitter and subsequently applying a displacement operation. We…