Particle Production in Strong Electromagnetic Fields and Local Approximations

Particle production in strong electromagnetic fields in relativistic heavy-ion collisions

Electromagnetic Shocks in Strong Magnetic Fields

The nonlinear properties of electromagnetic waves traveling through a magnetized vacuum is of particular interest in the study of neutron stars. Heisenberg and Euler [1] and Weisskopf [2] first derived nonlinear corrections to the Maxwell equations of the electromagnetic field. Lutzky and Toll [3] and Zheleznyakov and Fabrikant [4] applied the weak-field expansion to show that shock waves can d...

Disoriented Chiral Condensate and Strong Electromagnetic Fields

We discuss the effect of strong electromagnetic fields on chiral orientation in the framework of the linear σ model. Based on lessons we learn from computation of the effective potential at one loop, we argue that the chiral U(1) anomaly dominates chiral disorientation driven by electromagnetism. We show that the anomaly effect induces a quasi-instantaneous “kick” to field configurations along ...

Vacuum birefringence in strong inhomogeneous electromagnetic fields

Local Approximations for Branching Particle Systems

We derive different local approximations along with estimates of the remainders for the total mass processes of two branching particle systems. To this end, we investigate the corresponding classes of integer-valued variables. One of them is comprised of Pólya-Aeppli distributions, while members of the other class are the convolutions of a zero-modified geometric law. We obtain the closed-form ...