594 citations · 6.8k across the 91 of their papers we have counts for
5 papers · 2 filters
Optimal Photon Generation from Spontaneous Raman Processes in Cold Atoms
Melvyn Ho, Colin Teo, Hugues de Riedmatten +1
Spontaneous Raman processes in cold atoms have been widely used in the past decade for generating single photons. Here, we present a method to optimize their efficiencies for given…
Macroscopic quantum states: measures, fragility and implementations
Florian Fröwis, Pavel Sekatski, Wolfgang Dür +2
Large-scale quantum effects have always played an important role in the foundations of quantum theory. With recent experimental progress and the aspiration for quantum enhanced app…
Experimental many-pairs nonlocality
Hou Shun Poh, Alessandro Cerè, Jean-Daniel Bancal +4
Collective measurements on large quantum systems together with a majority voting strategy can lead to a violation of the CHSH Bell inequality. In presence of many entangled pairs,…
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…
Bell correlations in a many-body system with finite statistics
Sebastian Wagner, Roman Schmied, Matteo Fadel +3
A recent experiment reported the first violation of a Bell correlation witness in a many-body system [Science 352, 441 (2016)]. Following discussions in this paper, we address here…