448 citations · 2.9k across the 54 of their papers we have counts for
54 papers
Charge density response in layered metals: retardation effects, generalized plasma waves and their spectroscopic signatures
Francesco Gabriele, Riccardo Senese, Claudio Castellani +1
Transverse plasma polaritons and longitudinal plasmons describe the propagation of light-matter modes in an isotropic metal. However, in a layered metal the anisotropy of the bare…
Linear and non-linear current response in disordered d-wave superconductors
L. Benfatto, C. Castellani, G. Seibold
We present a detailed theoretical investigation of the linear and non-linear optical response in a model system for a disordered d-wave superconductor, showing that for both quanti…
Generalized Josephson plasmons in bilayer superconductors
Niccolò Sellati, Francesco Gabriele, Claudio Castellani +1
Layered superconductors like High-Tc cuprates display out-of-plane plasma oscillations between layers sustained by the weak Josephson coupling among the superconducting sheets, the…
Vortex supersolid in the XY model with tunable vortex fugacity
Ilaria Maccari, Nicolò Defenu, Claudio Castellani +1
In this paper, we investigate the XY model in the presence of an additional potential term that independently tunes the vortex fugacity favouring their nucleation. By increasing th…
Comment on: Calculation of an Enhanced Symmetry Mode Induced by Higgs Oscillations in the Raman Spectrum of High-Temperature Cuprate Superconductors
L. Benfatto, C. Castellani, T. Cea
In a recent manuscript Phys. Rev. Lett. 127, 197001 (2021) Puviani et al. claim that the Higgs mode gives an enhancement of the Raman response in the symmetric Raman chann…
THz non-linear optical response in cuprates: predominance of the BCS response over the Higgs mode
Mattia Udina, Jacopo Fiore, Tommaso Cea +3
Recent experiments with strong THz fields in unconventional cuprates superconductors have clearly evidenced an increase of the non-linear optical response below the superconducting…