Witnessing the formation and relaxation of massive quasi-particles in a strongly correlated electron system

Abstract

The non-equilibrium semiconductors physics is based on the paradigm that different degrees of freedom interact on different timescales. In this context the photo-excitation is often treated as an impulsive injection of electronic energy that is transferred to other degrees of freedom only at later times. Here, by studying the ultrafast particles dynamics in a archetypal strongly correlated charge-transfer insulator (La2CuO4), we show that the interaction between electrons and bosons manifest itself directly in the photo-excitation processes of a correlated material. With the aid of a general theoretical framework (Hubbard Holstein Hamiltonian), we reveal that sub-gap excitation pilots the formation of itinerant quasi-particles which are suddently dressed (<100 fs) by an ultrafast reaction of the bosonic field.

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• Multi-band non-equilibrium GW+EDMFT formalism for correlated insulators
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• Keldysh space control of charge dynamics in a strongly driven Mott insulator
• Photo-induced nonequilibrium states in Mott insulators
• Photoinduced charge-order melting dynamics in a one-dimensional interacting Holstein model
• Mottness at finite doping and charge-instabilities in cuprates
• Photo-enhanced excitonic correlations in a Mott insulator with nonlocal interactions
• Phase separation in the non-equilibrium Verwey transition in magnetite
• Supermagnonic propagation in two-dimensional antiferromagnets
• Probing the electron-phonon interaction in correlated systems with coherent lattice fluctuation spectroscopy
• Photoinduced absorptions inside the Mott gap in the two-dimensional extended Hubbard model
• Ultrafast manipulation of the NiO antiferromagnetic order via sub-gap optical excitation
• Ultrafast magnetic dynamics in insulating YBa${}_2$Cu${}_3$O${}_{6+x}$ revealed by time resolved two-magnon Raman Scattering
• Thermalization after photoexcitation from the perspective of optical spectroscopy
• Disorder-sensitive pump-probe measurements on Nd${}_{1.83}$Ce${}_{0.17}$CuO${}_{4\pm \delta }$ films
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• Clocking the Onset of Bilayer Coherence in a High-${\mathrm{T}}_{\mathrm{C}}$ Cuprate
• Ultrafast transient interference in pump-probe spectroscopy of band and Mott insulators
• Nature of Bosonic Excitations revealed by high-energy charge carriers
• Mott insulator breakdown through pattern formation
• Nonequilibrium phononic first-order phase transition in a driven fermion chain
• Many-body recombination in insulating cuprates
• Electron-phonon coupling in undoped cuprate $YB{a}_{2}C{u}_3{O}_6$ estimated from Raman and optical conductivity spectra
• Beyond the Born-Markov approximation: dissipative dynamics of a single qubit
• Dissipative dynamics of a driven qubit: interplay between non-adiabatic dynamics and noise effects from weak to strong coupling regime
• Digital-analog quantum computing of fermion-boson models in superconducting circuits
• Fermi blockade of the electron-phonon interaction: why strong coupling effects may not be seen in optimally doped high temperature superconductors
• Photo-induced Dirac cone flattening in BaNiS${}_2$
• The perils of minimal coupling to electromagnetic field in quantum many-body systems
• Time-resolved multimode heterodyne detection for dissecting coherent states of matter
• High Harmonic Tracking of Ultrafast Electron Dynamics across the Mott to Charge Density Wave Phase Transition
• Excitonic effects in the photocarriers dynamics of two-dimensional materials
• Determination and correction of spectral phase from principal component analysis of coherent phonons