Ultrafast optical spectroscopy of strongly correlated materials and high-temperature superconductors: a non-equilibrium approach

C Giannetti, M Capone, D Fausti, M Fabrizio… - Advances in …, 2016 - Taylor & Francis
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 …

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 …

Energy-Gap Dynamics of Superconducting NbN Thin Films Studied<? format?> by Time-Resolved Terahertz Spectroscopy

M Beck, M Klammer, S Lang, P Leiderer, VV Kabanov… - Physical Review Letters, 2011 - APS
Using time-domain terahertz spectroscopy we performed direct studies of the photoinduced
suppres<? format?> sion and recovery of the superconducting gap in a conventional BCS …

Approach to a stationary state in a driven Hubbard model coupled to a thermostat

A Amaricci, C Weber, M Capone, G Kotliar - Physical Review B—Condensed …, 2012 - APS
We investigate the dynamics of the Hubbard model in a static electric field in order to identify
the conditions necessary to reach a nonequilibrium stationary state. We show that, for a …

Optical response of highly excited particles in a strongly correlated system

Z Lenarčič, D Golež, J Bonča, P Prelovšek - Physical Review B, 2014 - APS
We present a linear-response formalism for a system of correlated electrons out of
equilibrium, as relevant for the probe optical absorption in pump-probe experiments. We …

Ab initio absorption spectrum of NiO combining molecular dynamics with the embedded cluster approach in a discrete reaction field

A Domingo, A Rodriguez-Fortea, M Swart… - Physical Review B …, 2012 - APS
We developed a procedure that combines three complementary computational
methodologies to improve the theoretical description of the electronic structure of nickel …

Evidence for a photoinduced nonthermal superconducting-to-normal-state phase transition in overdoped BiSrCaYCuO

G Coslovich, C Giannetti, F Cilento, S Dal Conte… - Physical Review B …, 2011 - APS
Here we report extensive ultrafast time-resolved reflectivity experiments on overdoped Bi 2
Sr 2 Ca 1-x Y x Cu 2 O 8+ δ single crystals (T c= 78 K) aimed to clarify the nature of the …

Photoinduced melting of superconductivity in the high- superconductor LaSrCuO probed by time-resolved optical and terahertz techniques

M Beyer, D Städter, M Beck, H Schaefer… - Physical Review B …, 2011 - APS
The dynamics of depletion and recovery of a superconducting state in La 2-x Sr x CuO 4 thin
films is investigated utilizing optical pump-probe and optical pump-THz-probe techniques as …

Probing the interplay between lattice dynamics and short-range magnetic correlations in CuGeO3 with femtosecond RIXS

E Paris, CW Nicholson, S Johnston, Y Tseng… - npj Quantum …, 2021 - nature.com
Investigations of magnetically ordered phases on the femtosecond timescale have provided
significant insights into the influence of charge and lattice degrees of freedom on the …

Vibrational coherent control of localized dd electronic excitation

A Marciniak, S Marcantoni, F Giusti, F Glerean… - Nature Physics, 2021 - nature.com
Addressing the role of quantum coherence in the interplay between the different matter
constituents (electrons, phonons and spin) is a critical step towards understanding transition …