228 citations · 3.3k across the 71 of their papers we have counts for
10 papers · 1 filter
Nonlocality, steering and quantum state tomography in a single experiment
Chang-Jiang Huang, Guo-Yong Xiang, Yu Guo +5
We investigate whether paradigmatic measurements for quantum state tomography, namely mutually unbiased bases and symmetric informationally complete measurements, can be employed t…
Bounding and simulating contextual correlations in quantum theory
Armin Tavakoli, Emmanuel Zambrini Cruzeiro, Roope Uola +1
We introduce a hierarchy of semidefinite relaxations of the set of quantum correlations in generalised contextuality scenarios. This constitutes a simple and versatile tool for bou…
Quantum measurement incompatibility in subspaces
Roope Uola, Tristan Kraft, Sébastien Designolle +5
We consider the question of characterising the incompatibility of sets of high-dimensional quantum measurements. We introduce the concept of measurement incompatibility in subspace…
Demonstrating the power of quantum computers, certification of highly entangled measurements and scalable quantum nonlocality
Elisa Bäumer, Nicolas Gisin, Armin Tavakoli
Increasingly sophisticated quantum computers motivate the exploration of their abilities in certifying genuine quantum phenomena. Here, we demonstrate the power of state-of-the-art…
Compounds of symmetric informationally complete measurements and their application in quantum key distribution
Armin Tavakoli, Ingemar Bengtsson, Nicolas Gisin +1
Symmetric informationally complete measurements (SICs) are elegant, celebrated and broadly useful discrete structures in Hilbert space. We introduce a more sophisticated discrete s…
Informationally restricted correlations: a general framework for classical and quantum systems
Armin Tavakoli, Emmanuel Zambrini Cruzeiro, Erik Woodhead +1
We introduce new methods and tools to study and characterise classical and quantum correlations emerging from prepare-and-measure experiments with informationally restricted commun…
Bilocal Bell inequalities violated by the quantum Elegant Joint Measurement
Armin Tavakoli, Nicolas Gisin, Cyril Branciard
Network Bell experiments give rise to a form of quantum nonlocality that conceptually goes beyond Bell's theorem. We investigate here the simplest network, known as the bilocality…
Semi-device-independent certification of independent quantum state and measurement devices
Armin Tavakoli
Certifying that quantum devices behave as intended is crucial for quantum information science. Here, methods are developed for certification of both state preparation devices and m…
Experimental characterisation of unsharp qubit observables and sequential measurement incompatibility via quantum random access codes
Hammad Anwer, Sadiq Muhammad, Walid Cherifi +3
Unsharp measurements are increasingly important for foundational insights in quantum theory and quantum information applications. Here, we report an experimental implementation of…
The Platonic solids and fundamental tests of quantum mechanics
Armin Tavakoli, Nicolas Gisin
The Platonic solids is the name traditionally given to the five regular convex polyhedra, namely the tetradron, the octahedron, the cube, the icosahedron and the dodecahedron. Perh…