Two-dimensional Fermi liquid dynamics with density and quadrupolar interactions

Abstract

We consider a Fermi liquid model with density-density as well as quadrupolar forward scattering interactions parametrized by the Landau parameters $F_0$ and $F_2$. Using bosonization and a decimation technique, we compute collective modes and spectral functions for a huge range of interactions, ranging from strong repulsion to strong attraction in either angular momentum channels. We present a dynamical phase diagram showing a region of parameters where the collective modes structure changes abruptly, possibly signaling a dynamical phase transition.

arXiv comment11 pages, 5 figures, some references added. Final version accepted for publication in Physical Review B

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Cited by in corpus (7)

• Exceptional points in Fermi liquids with quadrupolar interactions
• Protection of Correlation-Induced Phase Instabilities by Exceptional Susceptibilities
• Shear Bernstein modes in a two-dimensional electron liquid
• Probing Fermi liquid exceptional points through AC conductivity
• Acoustic plasmons and isotropic short-range interaction in two-component electron liquids
• Laser induced $\mathcal{P}\mathcal{T}$-symmetry breaking in the fluctuations of electronic fluids
• Atypical Behavior of Collective Modes in Two-Dimensional Fermi Liquids