This review addresses experiments on elasticity, plasticity, and flow of solid He 4 and He 3,
focusing on dislocations and other defects that are responsible for the unusual mechanical …

Brillouin scattering has applications ranging from signal processing,, sensing and
microscopy to quantum information and fundamental science,. Most of these applications …

Superfluid He 3 under nanoscale confinement has generated significant interest due to the
rich spectrum of phases with complex order parameters that may be stabilized. Experiments …

We measure the quantum fluctuations of a single acoustic mode in a volume of superfluid
He that is coupled to an optical cavity. Specifically, we monitor the Stokes and anti-Stokes …

Cavity optomechanical systems provide powerful platforms to manipulate photons and
phonons, open potential applications for modern optical communications and precise …

We experimentally study the emergence of microcanonical equilibrium states in the turbulent
relaxation dynamics of a two-dimensional chiral vortex gas. Same-sign vortices are injected …

Transition from laminar to turbulent states of classical viscous fluids is complex and
incompletely understood. Transition to quantum turbulence (QT), by which we mean the …

Superfluid He 4 (He II) is a widely studied model system for exploring finite-size effects in
strongly confined geometries. Here, we study He II confined in millimeter-scale channels of …

We demonstrate electromechanical coupling between a superfluid mechanical mode and a
microwave mode formed by a patterned microfluidic chip and a 3D cavity. The electric field …

Turbulent flow restricted to two dimensions can spontaneously develop order on large
scales, defying entropy expectations and in sharp contrast with turbulence in three …