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

F Novelli, G De Filippis, V Cataudella, M Esposito, I Vergara, F Cilento, E Sindici, A Amaricci, Claudio Giannetti, D Prabhakaran, S Wall, A Perucchi, S Dal Conte, G Cerullo, M Capone, A Mishchenko, M Grüninger, N Nagaosa, F Parmigiani, D. Fausti*

*Autore corrispondente per questo lavoro

Risultato della ricerca: Contributo in rivistaArticolopeer review

31 Citazioni (Scopus)

Abstract

The non-equilibrium approach to correlated electron systems is often based on the paradigm that different degrees of freedom interact on different timescales. In this context, photo-excitation is 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 dynamics of quasi-particles in an archetypal strongly correlated charge-transfer insulator (La2CuO4+δ), we show that the interaction between electrons and bosons manifests 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 suddenly dressed by an ultrafast reaction of the bosonic field.
Lingua originaleInglese
pagine (da-a)N/A-N/A
RivistaNature Communications
Volume5
Numero di pubblicazioneN/A
DOI
Stato di pubblicazionePubblicato - 2014

All Science Journal Classification (ASJC) codes

  • Chimica Generale
  • Biochimica, Genetica, Biologia Molecolare Generali
  • Fisica e Astronomia Generali

Keywords

  • correlated materials

Fingerprint

Entra nei temi di ricerca di 'Witnessing the formation and relaxation of dressed quasi-particles in a strongly correlated electron system'. Insieme formano una fingerprint unica.

Cita questo