For systems consisting of distinguishable particles, there exists an agreed upon notion of
entanglement which is fundamentally based on the possibility of addressing individually …

We present an overview of the quantitative theory of single-copy entanglement in finite-
dimensional quantum systems. In particular we emphasize the point of view that different …

Gaussian states have played an important role in the physics of continuous-variable
quantum systems. They are appealing for the experimental ease with which they can be …

Entanglement is the key quantum resource for improving measurement sensitivity beyond
classical limits. However, the production of entanglement in mesoscopic atomic systems has …

Entanglement is one of the most intriguing aspects of quantum mechanics and lies at the
heart of the ongoing second quantum revolution, where it is a resource that is used in …

We report on the first experimental realization of the controlled-not (cnot) quantum gate and
entanglement for two individual atoms of different isotopes and demonstrate a negligible …

Tabletop tests of quantum gravity (QG) have long been thought to be practically impossible.
However, remarkably, because of rapid progress in quantum information science (QIS), such …

Typical elements of quantum networks are made by identical systems, which are the basic
particles constituting a resource for quantum information processing. Whether the …

The existence of fundamentally identical particles represents a foundational distinction
between classical and quantum mechanics. Because of their exchange symmetry, identical …

Quantum entanglement of identical particles is essential in quantum information theory. Yet,
its correct determination remains an open issue hindering the general understanding and …