3 papers
cond-mat.str-el2026
Conserving relaxation-time approximation for electron-electron collisions
Sayak Bhattacharjee, Tatia Kiliptari, Dmitrii L. Maslov
We develop a conserving relaxation-time approximation (cRTA) based on an explicit energy-resolved projection onto the full space of collision invariants. Our cRTA retains the energ…
cond-mat.str-el2026
Conductivity of a Non-Galilean--Invariant Fermi Liquid: Exact Solution of the Kinetic Equation
Tatia Kiliptari, Vladimir I. Yudson, Dmitrii L. Maslov
We obtain an exact expression for the conductivity of a disordered, non-Galilean-invariant Fermi liquid by solving the kinetic equation with both screened Coulomb and Pomeran…
cond-mat.str-el2025
Magnetoconductivity due to electron-electron interaction in a non-Galilean-invariant Fermi liquid
Tatia Kiliptari, Dmitrii L. Maslov
The -scaling of resistivity with temperature is often viewed as a classic hallmark of a Fermi-liquid (FL) behavior in metals. However, if umklapp scattering is suppressed, thi…