122 citations · 270 across the 5 of their papers we have counts for
5 papers
Hacking energy-time entanglement-based systems with classical light
Jonathan Jogenfors, Ashraf M. Elhassan, Johan Ahrens +2
Photonic systems based on energy-time entanglement have been proposed to test local realism using the Bell inequality. A violation of this inequality normally also certifies securi…
Experimental observation of Hardy-like quantum contextuality
Breno Marques, Johan Ahrens, Mohamed Nawareg +2
Contextuality is a fundamental property of quantum theory and a critical resource for quantum computation. Here, we experimentally observe the arguably cleanest form of contextuali…
Experimental Tests of Classical and Quantum Dimensions
Johan Ahrens, Piotr Badziag, Marcin Pawlowski +2
We report on an experimental test of classical and quantum dimension. We have used a dimension witness which can distinguish between quantum and classical systems of dimension 2,3…
Two Fundamental Experimental Tests of Nonclassicality with Qutrits
Johan Ahrens, Elias Amselem, Adan Cabello +1
We report two fundamental experiments on three-level quantum systems (qutrits). The first one tests the simplest task for which quantum mechanics provides an advantage with respect…
Experimental Device-independent Tests of Classical and Quantum Dimensions
Johan Ahrens, Piotr Badziag, Adan Cabello +1
A fundamental resource in any communication and computation task is the amount of information that can be transmitted and processed. Information encoded in a classical system is li…