Quantum technologies are opening novel avenues for applied and fundamental science at
an impressive pace. In this perspective article, we focus on the promises coming from the …

Advances in quantum technologies are giving rise to a revolution in the way fundamental
physics questions are explored at the empirical level. At the same time, they are the seeds …

Roger Penrose proposed that a spatial quantum superposition collapses as a back-reaction
from spacetime, which is curved in different ways by each branch of the superposition. In this …

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 …

The traditional view from particle physics is that quantum gravity effects should only become
detectable at extremely high energies and small length scales. Due to the significant …

Although quantum physics is well understood in inertial reference frames (flat spacetime), a
current challenge is the search for experimental evidence of nontrivial or unexpected …

Seven nonstandard models coupling quantum matter and gravity | AVS Quantum Science | AIP
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Recent works have proved that semiclassical theories of gravity needed not be
fundamentally inconsistent, at least in the Newtonian regime. Using the machinery of …

Collapse models describe phenomenologically the quantum-to-classical transition by
adding suitable nonlinear and stochastic terms to the Schrödinger equation, thus (slightly) …

Spontaneous unitarity violations were recently proposed as a cause of objective quantum
state reduction. This complements proposals based on stochastic modifications of …