38 citations · 140 across the 15 of their papers we have counts for
15 papers · 1 filter
Detecting bipartite entanglement with PnCP maps and non-negative polynomials
Gaël Massé, Mounir Rezig, Paul Catala +4
Positive non-Completely Positive (PnCP) maps are an essential tool to detect entanglement since their characterization is a dual aspect of the separability problem. A recent algori…
A unified framework for Bell inequalities from continuous-variable contextuality
Carlos Ernesto Lopetegui-González, Gaël Massé, Enky Oudot +6
Although the original EPR paradox was formulated in terms of position and momentum, most studies of these phenomena have focused on measurement scenarios with only a discrete numbe…
Long-range photonic device-independent quantum key distribution using SPDC sources and linear optics
Morteza Moradi, Maryam Afsary, Piotr Mironowicz +2
We address the question of the implementation of long-distance device-independent quantum key distribution (DI QKD) by proposing two experimentally viable schemes. Those schemes on…
Long-distance device-independent quantum key distribution using single-photon entanglement
Anna Steffinlongo, Mariana Navarro, Marina Cenni +3
Device-independent quantum key distribution (DIQKD) provides the strongest form of quantum security, as it allows two honest users to establish secure communication channels even w…
Realistic Bell tests with homodyne measurements
Enky Oudot, Gaël Massé, Xavier Valcarce +1
We analyze Bell inequalities violations in photonic experiments for which the measurement apparatuses are restricted to homodyne measurements. Through numerical optimization of the…
Device-Independent Quantum Key Distribution beyond qubits
Javier Rivera-Dean, Anna Steffinlongo, Neil Parker-Sánchez +2
Device-Independent Quantum Key Distribution (DIQKD) aims to generate secret keys between two parties without relying on trust in their employed devices, imposing strict noise const…
Device Independent Quantum Key Distribution with realistic single-photon source implementations
Eva M. González-Ruiz, Javier Rivera-Dean, Marina F. B. Cenni +3
Device Independent Quantum Key Distribution (DIKQD) aims at generating secret keys between distant parties without the parties trusting their devices. We investigate a proposal for…
Benchmarking single-photon sources from an auto-correlation measurement
Pavel Sekatski, Enky Oudot, Patrik Caspar +2
Here we argue that the probability that a given source produces exactly a single photon is a natural quantity to benchmark single-photon sources as it certifies the absence of mult…
Local and scalable detection of genuine multipartite single-photon path entanglement
Patrik Caspar, Enky Oudot, Pavel Sekatski +5
How can a multipartite single-photon path-entangled state be certified efficiently by means of local measurements? We address this question by constructing an entanglement witness…
Heralded distribution of single-photon path entanglement
Patrik Caspar, Ephanielle Verbanis, Enky Oudot +9
We report the experimental realization of heralded distribution of single-photon path entanglement at telecommunication wavelengths in a repeater-like architecture. The entanglemen…
What is the minimum CHSH score certifying that a state resembles the singlet?
Xavier Valcarce, Pavel Sekatski, Davide Orsucci +3
A quantum state can be characterized from the violation of a Bell inequality. The well-known CHSH inequality for example can be used to quantify the fidelity (up to local isometrie…
Bipartite nonlocality with a many-body system
Enky Oudot, Jean-Daniel Bancal, Pavel Sekatski +1
We consider a bipartite scenario where two parties hold ensembles of -spins which can only be measured collectively. We give numerical arguments supporting the conjecture that…
Witnessing Opto-Mechanical Entanglement with Photon-Counting
Melvyn Ho, Enky Oudot, Jean-Daniel Bancal +1
The ability to coherently control mechanical systems with optical fields has made great strides over the past decade, and now includes the use of photon counting techniques to dete…
Optimal entanglement witnesses in a split spin-squeezed Bose-Einstein condensate
Enky Oudot, Jean-Daniel Bancal, Roman Schmied +2
How to detect quantum correlations in bi-partite scenarios using a split many-body system and collective measurements on each party? We address this question by deriving entangleme…
Proposal for witnessing non-classical light with the human eye
A. Dodel, A. Mayinda, E. Oudot +4
We give a complete proposal showing how to detect the non-classical nature of photonic states with naked eyes as detectors. The enabling technology is a sub-Poissonian photonic sta…