Abstract “Do Carroll particles move?” The answer depends on the characteristics of the
particle such as its mass, spin, electric charge, and magnetic moment. A massive Carroll …

The relativistic treatment of spin is a fundamental subject which has an old history. In various
physical contexts it is necessary to separate the relativistic total angular momentum into an …

We derive the Boltzmann equation and the collision kernel for massive spin-1/2 particles,
using the Wigner-function formalism and employing an expansion in powers of ℏ. The …

We calculate the Wigner function for massive spin-1/2 particles in an inhomogeneous
electromagnetic field to leading order in the Planck constant ℏ. Going beyond leading order …

We revisit the derivation of the nonlocal collision term in the Boltzmann equation for spin-1/2
particles, using both the Wigner-function approach by de Groot, van Leeuwen, and van …

We discuss a novel worldline framework for computations of the chiral magnetic effect (CME)
in ultrarelativistic heavy-ion collisions. Starting from the fermion determinant in the QCD …

We present a semiclassical analysis for Dirac fields on an arbitrary spacetime background
and in the presence of a fixed electromagnetic field. Our approach is based on a Wentzel …

In many classical and quantum systems described by an effective non-Hermitian
Hamiltonian, spectral phase transitions, from an entirely real-energy spectrum to a complex …

Using the fact that the horizon of black holes is a Carroll manifold, we show that an “exotic
photon,” ie, a particle without mass and charge but with anyonic spin, magnetic moment, and …

In previous work, we outlined a worldline framework that can be used for systematic
computations of the chiral magnetic effect (CME) in ultrarelativistic heavy-ion collisions …