Nanomechanics has brought mesoscopic physics into the world of vibrations. Because
nanomechanical systems are small, fluctuations are significant, the vibrations already …

Energy decay plays a central role in a wide range of phenomena 1, 2, 3, such as optical
emission, nuclear fission, and dissipation in quantum systems. Energy decay is usually …

Ultralight mechanical resonators based on low-dimensional materials are well suited as
exceptional transducers of minuscule forces or mass changes. However, the low …

The nature of the quantum-to-classical crossover remains one of the most challenging open
question of Science to date. In this respect, moving objects play a specific role. Pioneering …

We have measured the thermal properties of suspended membranes from 10 to 300 K for
two amplitudes of internal stress (about 0.1 and 1 GPa) and for two different thicknesses (50 …

We demonstrate that soft-clamped silicon nitride strings with a large aspect ratio can be
operated at mK temperatures. The quality factors (Q) of two measured devices show …

We present a microscopic theory of nonlinear damping and dephasing of low-frequency
eigenmodes in nanomechanical and micromechanical systems. The mechanism of the both …

We report on microwave optomechanics measurements performed on a nuclear adiabatic
demagnetization cryostat, whose temperature is determined by accurate thermometry from …

We report on measurements of dissipation and frequency noise at millikelvin temperatures
of nanomechanical devices covered with aluminum. A clear excess damping is observed …

Tunneling two-level systems affect damping, noise, and decoherence in a wide range of
devices, including nanoelectromechanical resonators, optomechanical systems, and qubits …