5 papers
Landau Quasiparticles in Weak Power-Law Liquids
Joshuah T. Heath
The failure of Landau-Fermi liquid theory is often considered a telltale sign of universal, scale-invariant behavior in the emergent field theory of interacting fermions. Neverthel…
Chebyshev Polynomial Expansion of Two-Dimensional Landau-Fermi liquid Parameters
Joshuah T. Heath, Matthew P. Gochan, Kevin S. Bedell
We study the intrinsic effects of dimensional reduction on the transport equation of a perfectly two-dimensional Landau-Fermi liquid. By employing the orthogonality condition on th…
Atypical Behavior of Collective Modes in Two-Dimensional Fermi Liquids
Matthew P. Gochan, Joshuah T. Heath, Kevin S. Bedell
Using the Landau kinetic equation to study the non-equilibrium behavior of interacting Fermi systems is one of the crowning achievements of Landau's Fermi liquid theory. While thor…
Necessary and Sufficient Conditions for the Validity of Luttinger's Theorem
Joshuah T. Heath, Kevin S. Bedell
Luttinger's theorem is a major result in many-body physics that states the volume of the Fermi surface is directly proportional to the particle density. In its "hard" form, Lutting…
Universal Signatures of Majorana-like Quasiparticles in Strongly Correlated Landau-Fermi Liquids
Joshuah T. Heath, Kevin S. Bedell
Motivated by recent experiments in the Kitaev honeycomb lattice, Kondo insulators, and the "Luttinger's theorem-violating" Fermi liquid phase of the underdoped cuprates, we extend…