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 …

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 is a phenomenon whereby systems cannot be described
independently of each other, even though they may be separated by an arbitrarily large …

The coupling of optical and mechanical degrees of freedom is the underlying principle of
many techniques to measure mechanical displacement, from macroscale gravitational wave …

We show how stationary entanglement between an optical cavity field mode and a
macroscopic vibrating mirror can be generated by means of radiation pressure. We also …

Quantum entanglement of mechanical systems emerges when distinct objects move with
such a high degree of correlation that they can no longer be described separately. Although …

A quantum theory of cooling of a mechanical oscillator by radiation pressure-induced
dynamical backaction is developed, which is analogous to sideband cooling of trapped ions …

The coupling of mechanical and optical degrees of freedom via radiation pressure has been
a subject of early research in the context of gravitational wave detection. Recent …

Entanglement of light and multiple vibrations is a key resource for multichannel quantum
information processing and memory. However, entanglement generation is generally …

In atomic laser cooling, preparation of the motional quantum ground state has been
achieved using resolved-sideband cooling of trapped ions. Here, we report the first …