Entanglement is a quintessential quantum mechanical phenomenon with no classical
equivalent. First discussed by Einstein, Podolsky, and Rosen and formally introduced by …

Quantum-limited microwave parametric amplifiers are genuine key pillars for rising quantum
technologies and, in general, for applications that rely on the successful readout of weak …

The hypothetical axion particle (of unknown mass) is a leading candidate for dark matter
(DM). Many experiments search for axions with microwave cavities, where an axion may …

The applications of spin-based quantum sensors to measurements probing fundamental
physics are surveyed. Experimental methods and technologies developed for spin-based …

The field of propagating quantum microwaves is a relatively new area of research that is
receiving increased attention due to its promising technological applications, both in …

The manipulation of quantum states of light has resulted in significant advancements in both
dark matter searches and gravitational wave detectors. Current dark matter searches …

The dark-matter puzzle is one of the most important open problems in modern physics. The
ultralight axion is a well-motivated dark-matter candidate, conceived to resolve the strong …

The dark (or hidden) photon is a massive U (1) gauge boson theorized as a dark force
mediator and as a dark matter candidate. Dark photons can be detected with axion cavity …

A bstract We propose to use the nuclear spin excitation in the ferromagnetic A 1 phase of the
superfluid 3 He for the axion dark matter detection. This approach is striking in that it is …

Dark photons have emerged as promising candidates for dark matter, and their search is a
top priority in particle physics, astrophysics, and cosmology. We report the first use of a …