In the last two decades non-equilibrium spectroscopies have evolved from avant-garde
studies to crucial tools for expanding our understanding of the physics of strongly correlated …

We investigate the terahertz (THz)-pulse-driven nonlinear response in the d-wave cuprate
superconductor Bi 2 Sr 2 CaCu 2 O 8+ x (Bi2212) using a THz pump near-infrared probe …

In high-temperature superconductivity, the process that leads to the formation of Cooper
pairs, the fundamental charge carriers in any superconductor, remains mysterious. We used …

The interplay between the electronic and lattice degrees of freedom in nonequilibrium states
of strongly correlated systems has been debated for decades. Although progress has been …

Superconductivity and charge density waves (CDWs) are competitive, yet coexisting, orders
in cuprate superconductors. To understand their microscopic interdependence, a probe …

Ultrafast spectroscopy is an emerging technique with great promise in the study of quantum
materials, as it makes it possible to track similarities and correlations that are not evident …

We use time-and angle-resolved photoemission to measure the nodal nonequilibrium
electronic states in various dopings of Bi 2 Sr 2 CaCu 2 O 8+ δ. We find that the initial pump …

Abstract Development of the ultrashort pulse lasers made it possible to realize the terahertz
(THz) generation and detection in a broad frequency range between 0.1 and 30 THz …

Atomically thin cuprates exhibiting a superconducting phase transition temperature similar to
that of the bulk have recently been realized, although the device fabrication remains a …

Ultrafast broadband transient reflectivity experiments are performed to study the interplay
between the nonequilibrium dynamics of the pseudogap and the superconducting phases in …