Axions and other very light axion-like particles appear in many extensions of the Standard
Model, and are leading candidates to compose part or all of the missing matter of the …

Electromagnetic radiation in the terahertz (THz) frequency range is a fascinating
spectroscopic tool that provides resonant access to fundamental modes, including the …

Key properties of quantum materials stem from dynamic interaction chains that connect
stable electronic quasiparticles through short-lived coherences, which are difficult to control …

Interactions of quantum materials with strong laser fields can induce exotic non-equilibrium
electronic states,,,,–. Monolayer transition metal dichalcogenides, a new class of direct-gap …

Vector bosons heavier than 10-22 eV can be viable dark matter candidates with distinctive
experimental signatures. Ultralight dark matter generally requires a nonthermal origin to …

Ultrashort terahertz pulses derived from femtosecond table-top sources have become a
valuable tool for time-resolved spectroscopy during the last two decades. Until recently, the …

An intense laser field can remove an electron from an atom or molecule and pull the electron
into a large-amplitude oscillation in which it repeatedly collides with the charged core it left …

We study the production of ultralight dark photons from a network of near-global, Abelian-
Higgs cosmic strings. We find that dark photons produced in this way are nonrelativistic …

We explore the phenomenology of scalar fields coupled to asymptotically safe quantum
gravity, in light of their potential significance for dark matter, for the inflaton as well as …

Axionlike particles are promising candidates to make up the dark matter of the Universe, but
it is challenging to design experiments that can detect them over their entire allowed mass …