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 …

Recent progress in utilizing ultrafast light-matter interaction to control the macroscopic
properties of quantum materials is reviewed. Particular emphasis is placed on photoinduced …

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 …

When electrons in a solid are excited by light, they can alter the free energy landscape and
access phases of matter that are out of reach in thermal equilibrium. This accessibility …

Upon excitation with an intense laser pulse, a symmetry-broken ground state can undergo a
non-equilibrium phase transition through pathways different from those in thermal …

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 …

The interaction of many-body systems with intense light pulses may lead to novel emergent
phenomena far from equilibrium. Recent discoveries, such as the optical enhancement of …

Time-of-flight-based momentum microscopy has a growing presence in photoemission
studies, as it enables parallel energy-and momentum-resolved acquisition of the full …

Transient control over the atomic potential-energy landscapes of solids could lead to new
states of matter and to quantum control of nuclear motion on the timescale of lattice …