Browsing by Subject "Polarons"

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  • Ionic polaron in a Bose-Einstein condensate 
    Astrakharchik, Grigory E.; Ardila, Luis A. Peña; Schmidt, Richard; Jachymski, Krzysztof; Negretti, Antonio (London : Springer Nature, 2021)
    The presence of strong interactions in a many-body quantum system can lead to a variety of exotic effects. Here we show that even in a comparatively simple setup consisting of a charged impurity in a weakly interacting ...
  • Picosecond near-to-mid-infrared absorption of pulse-injected small polarons in magnesium doped lithium niobate 
    Freytag, Felix; Booker, Philip; Corradi, Gabor; Messerschmidt, Simon; Krampf, Andreas; Imlau, Mirco (Washington, DC : Optical Society of America, 2018)
    Femtosecond-pulse-induced (Epump = 2:5 eV) picosecond infrared absorption is studied in the spectral region between 0.30 eV and 1.05 eV in LiNbO3:Mg. We find a noninstantaneous mid-infrared absorption peak in the time ...
  • Strong coupling Bose polarons in a two-dimensional gas 
    Ardila, L. A. Peña; Astrakharchik, G.E.; Giorgini, S. (College Park, MD : APS, 2020)
    We study the properties of Bose polarons in two dimensions using quantum Monte Carlo techniques. Results for the binding energy, the effective mass, and the quasiparticle residue are reported for a typical strength of ...