Gustavo Monteiro

Magnetotransport in Dirac metals: Chiral magnetic effect and quantum oscillations

Dirac metals are characterized by the linear dispersion of fermionic quasiparticles, with the Dirac point hidden inside a Fermi surface. We study the magnetotransport in these materials using chiral kinetic theory to describe within the same framework both the negative magnetoresistance caused by the chiral magnetic effect and quantum oscillations in the magnetoresistance due to the existence of the Fermi surface. We discuss the relevance of obtained results to recent measurements on

Hydrodynamics with gauge anomaly: Variational principle and Hamiltonian formulation

{\mathrm{Cd}}_{3}{\mathrm{As}}_{2}

Free surface variational principle for an incompressible fluid with odd viscosity.

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Nonresistive dissipative magnetohydrodynamics from the Boltzmann equation in the 14-moment approximation

We present a variational principle for relativistic hydrodynamics with gauge-anomaly terms for a fluid coupled to an Abelian background gauge field. For this we utilize the Clebsch parametrization of the velocity field. We also set up the Hamiltonian formulation and the canonical framework for the theory. While the equations of motion only involve the density and velocity fields, i.e., the Clebsch potentials only appear in the combination which is the velocity field, the generators of symmetry transformations (including the Hamiltonian) depend explicitly on one of the Clebsch potentials, if the background field is time-dependent. For the special case of time-independent background fields, this feature is absent.