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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 …

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 …

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

Graph states are a broad family of entangled quantum states, each defined by a graph
composed of edges representing the correlations between subsystems. Such states …

Cavity optomechanics, a promising platform to investigate macroscopic quantum effects, has
been widely used to study nonreciprocal entanglement with the Sagnac effect. Here, we …

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

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 …

Entanglement between distant massive mechanical oscillators is of particular interest in
quantum-enabled devices due to its potential applications in distributed quantum …

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