102 citations · 318 across the 28 of their papers we have counts for
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Spectroscopic evidences of quantum critical charge fluctuations in cuprates
M. Grilli, S. Caprara, C. Di Castro +1
We calculate the optical conductivity in a clean system of quasiparticles coupled to charge-ordering collective modes. The absorption induced by these modes may produce an anomalou…
Optical conductivity near finite-wavelength quantum criticality
S. Caprara, M. Grilli, C. Di Castro +1
We study the optical conductivity sigma(Omega) of an electron system near a quantum-critical point with finite-wavelength ordering. sigma(Omega) vanishes in clean Galilean-invarian…
Checkerboard and stripe inhomogeneities in cuprates
G. Seibold, J. Lorenzana, M. Grilli
We systematically investigate charge-ordering phases by means of a restricted and unrestricted Gutzwiller approximation to the single-band Hubbard model with nearest () and next…
Effective electron-electron and electron-phonon interactions in the Hubbard-Holstein model
G. Aprea, C. Di Castro, M. Grilli +1
We investigate the interplay between the electron-electron and the electron-phonon interaction in the Hubbard-Holstein model. We implement the flow-equation method to investigate w…