Recent development of ultrafast optical characterizations for quantum materials

T Dong, SJ Zhang, NL Wang - Advanced Materials, 2023 - Wiley Online Library
The advent of intense ultrashort optical pulses spanning a frequency range from terahertz to
the visible has opened a new era in the experimental investigation and manipulation of …

[HTML][HTML] Non-equilibrium phenomena in superconductors probed by femtosecond time-domain spectroscopy

J Demsar - Journal of Low Temperature Physics, 2020 - Springer
Abstract Development of ultrafast lasers and nonlinear optical techniques over the last two
decades provides tools to access real-time dynamics of low energy excitations in …

Near-infrared light-induced superconducting-like state in underdoped studied by -axis terahertz third-harmonic generation

K Katsumi, M Nishida, S Kaiser, S Miyasaka, S Tajima… - Physical Review B, 2023 - APS
The recent observation of the light-induced superconducting (SC)-like transient response in
c-axis optical conductivity far above the SC transition temperature T c in underdoped Y Ba 2 …

Transient trapping into metastable states in systems with competing orders

Z Sun, AJ Millis - Physical Review X, 2020 - APS
The quench dynamics of a system involving two competing orders is investigated using a
Ginzburg-Landau theory with relaxational dynamics. We consider the scenario where a …

[HTML][HTML] Magnetic field expulsion in optically driven YBa2Cu3O6.48

S Fava, G De Vecchi, G Jotzu, M Buzzi, T Gebert, Y Liu… - Nature, 2024 - nature.com
Coherent optical driving in quantum solids is emerging as a research frontier, with many
reports of interesting non-equilibrium quantum phases,,–and transient photo-induced …

Cavity magnon-polaritons in cuprate parent compounds

JB Curtis, A Grankin, NR Poniatowski, VM Galitski… - Physical Review …, 2022 - APS
Cavity control of quantum matter may offer new ways to study and manipulate many-body
systems. A particularly appealing idea is to use cavities to enhance superconductivity …

Pump Frequency Resonances for Light-Induced Incipient Superconductivity in

B Liu, M Först, M Fechner, D Nicoletti, J Porras, T Loew… - Physical Review X, 2020 - APS
Optical excitation in the cuprates has been shown to induce transient superconducting
correlations above the thermodynamic transition temperature TC, as evidenced by the …

Optical Saturation Produces Spurious Evidence for Photoinduced Superconductivity in

JS Dodge, L Lopez, DG Sahota - Physical Review Letters, 2023 - APS
We discuss a systematic error in time-resolved optical conductivity measurements that
becomes important at high pump intensities. We show that common optical nonlinearities …

Higgs-mediated optical amplification in a nonequilibrium superconductor

M Buzzi, G Jotzu, A Cavalleri, JI Cirac, EA Demler… - Physical Review X, 2021 - APS
We propose a novel nonequilibrium phenomenon, through which a prompt quench from a
metal to a transient superconducting state can induce large oscillations of the order …

Coherent emission from surface Josephson plasmons in striped cuprates

D Nicoletti, M Buzzi, M Fechner… - Proceedings of the …, 2022 - National Acad Sciences
The interplay between charge order and superconductivity remains one of the central
themes of research in quantum materials. In the case of cuprates, the coupling between …