Ultralight scalars are an interesting dark matter candidate that may produce a mechanical
signal by modulating the Bohr radius. Recently it has been proposed to search for this signal …

We present a class of models in which the coupling of the photon to an ultralight scalar field
that has a time-dependent vacuum expectation value causes the fine structure constant to …

A bstract The portal connecting the invisible and visible sectors is one of the most natural
explanations of the dark world. However, the early-time dark matter production via the portal …

We consider a nanoparticle levitated in a Paul trap in ultrahigh cryogenic vacuum, and look
for the conditions which allow for a stringent noninterferometric test of spontaneous collapse …

We propose a new strategy to directly detect light particle dark matter that has long-ranged
interactions with ordinary matter. The approach involves distorting the local flow of dark …

We apply a feedback cooling technique to simultaneously cool the three electromechanical
normal modes of the ton-scale resonant-bar gravitational wave detector AURIGA. The …

We analyze heat and work fluctuations in the gravitational wave detector AURIGA, modeled
as a macroscopic electromechanical oscillator in contact with a thermostat and cooled by an …

The network of resonant bar detectors of gravitational waves resumed coordinated
observations within the International Gravitational Event Collaboration (IGEC-2). Four …

The QCD axion is an hypothetical particle introduced to solve the strong CP problem of
standard model of particle physics and is of interest as a possible component of cold dark …

We have recently shown that the very low mechanical energy achieved and measured in the
main vibration mode of gravitational wave bar detectors can set an upper limit to possible …