Bell's 1964 theorem, which states that the predictions of quantum theory cannot be
accounted for by any local theory, represents one of the most profound developments in the …

How can one prove that a given quantum state is entangled? In this paper we review
different methods that have been proposed for entanglement detection. We first explain the …

Quantum entanglement has a central role in many areas of physics. To grasp the essence of
this phenomenon, it is fundamental to understand how different manifestations of …

Quantum correlations are at the heart of many applications in quantum information science
and, at the same time, they form the basis for discussions about genuine quantum effects …

Consider a two-party correlation that can be generated by performing local measurements
on a bipartite quantum system. A question of fundamental importance is to understand how …

A standard method to obtain information on a quantum state is to measure marginal
distributions along many different axes in phase space, which forms a basis of quantum …

Entanglement and nonlocality are both fundamental aspects of quantum theory, and play a
prominent role in quantum information science. The exact relation between entanglement …

Abstract Entanglement, the Einstein-Podolsky-Rosen (EPR) paradox and Bell's failure of
local-hiddenvariable (LHV) theories are three historically famous forms of “quantum …

Tests of local hidden-variable theories using measurements with continuous-variable (CV)
outcomes are developed, and a comparison of different methods is presented. As examples …

The controlled generation and identification of quantum correlations, usually encoded in
either qubits or continuous degrees of freedom, builds the foundation of quantum …