The physics of quantum materials is dictated by many-body interactions and mathematical
concepts such as symmetry and topology that have transformed our understanding of matter …

Light–matter interaction in 2D and topological materials provides a fascinating control knob
for inducing emergent, non-equilibrium properties and achieving new functionalities in the …

Angle-resolved photoemission spectroscopy (ARPES)—an experimental technique based
on the photoelectric effect—is arguably the most powerful method for probing the electronic …

Angle-resolved photoemission spectroscopy (ARPES), with its exceptional sensitivity to both
the binding energy and the momentum of valence electrons in solids, provides unparalleled …

Femtosecond mode-locked lasers producing visible/infrared frequency combs have steadily
advanced our understanding of fundamental processes in nature. For example, optical …

In the last decade, there has been a proliferation of laser sources for time-and angle-
resolved photoemission spectroscopy (TR-ARPES), building on the proven capability of this …

Ultrafast lasers are an increasingly important tool to control and stabilize emergent phases
in quantum materials. Among a variety of possible excitation protocols, a particularly …

The excitonic insulator is an electronically driven phase of matter that emerges upon the
spontaneous formation and Bose condensation of excitons. Detecting this exotic order in …

With its direct correspondence to electronic structure, angle-resolved photoemission
spectroscopy (ARPES) is a ubiquitous tool for the study of solids. When extended to the …

Understanding collective electronic states such as superconductivity and charge density
waves is pivotal for fundamental science and applications. The layered transition metal …