We construct the four-mode squeezed states and study their physical properties. These
states describe two linearly-coupled quantum scalar fields, which makes them physically …

Recent work has shown that it may be possible to detect gravitationally induced
entanglement in tabletop experiments in the not-too-distant future. However, there are at …

The entanglement entropy of a black hole and that of its Hawking radiation are expected to
follow the so-called Page curve: After an increase in line with Hawking's calculation, it is …

Quantum field theory (QFT) describes nature using continuous fields, but physical properties
of QFT are usually revealed in terms of measurements of observables at a finite resolution …

The manipulation of individual charged particles has been deeply explored in physics's
theoretical and experimental domains during the past decades. It is the pillar of several …

A bstract We purify the thermal density matrix of a free harmonic oscillator as a two-mode
squeezed state, characterized by a squeezing parameter and squeezing angle. While the …

General relativity and its cosmological solution predict the existence of tensor modes of
perturbations evolving on top of our Friedman-Lemaître-Robertson-Walker expanding …

Quantum entanglement, induced by spatial noncommutativity, is investigated for an
anisotropic harmonic oscillator. Exact solutions for the system are obtained after the model is …

Typically, the von Neumann entropy of a subsystem increases until it plateaus at the thermal
value. Under some circumstances, however, the intermediate value can dwarf the final …

A theory of neural networks (NNs) built upon collective variables would provide scientists
with the tools to better understand the learning process at every stage. In this work, we …