All our former experience with application of quantum theory seems to say that what is
predicted by quantum formalism must occur in the laboratory. But the essence of quantum …

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 …

An unknown quantum state‖ φ> can be disassembled into, then later reconstructed from,
purely classical information and purely nonclassical Einstein-Podolsky-Rosen (EPR) …

We report on a high-intensity source of polarization-entangled photon pairs with high
momentum definition. Type-II noncollinear phase matching in parametric down conversion …

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 …

The counter-intuitive aspects of quantum physics have been for long illustrated by thought
experiments, from Einstein's photon box to Schrödinger's cat. These experiments have now …

The superposition principle plays the most central role in all considerations of quantum
information, and in most of the" gedanken" experiments and even the paradoxes of quantum …

Over the past few decades, significant progress has been made in quantum information
technology, from theoretical studies to experimental demonstrations. Revolutionary quantum …

The subject of quantum computing brings together ideas from classical information theory,
computer science, and quantum physics. This review aims to summarize not just quantum …

A scheme is proposed for the generation of two-atom maximally entangled states and
realization of quantum logic gates and teleportation with cavity QED. The scheme does not …