Upcoming and planned experiments combining increasingly intense lasers and energetic
particle beams will access new regimes of nonlinear, relativistic, quantum effects. This …

The anomalous generation of chirality with mass effects via the axial Ward identity and its
dependence on the Schwinger mechanism is reviewed, utilizing parity violating …

We report on experimental observation of optical emission of graphene induced by an
intense terahertz (THz) pulse. P-doped chemical-vapor-deposition graphene with an initial …

We observe enhanced second harmonic generation in monolayer graphene in the presence
of an ultrastrong terahertz field pulse of picosecond duration with a peak amplitude of 250 …

In this paper, we present in detail consistent QED (and scalar QED) calculations of particle
creation effects in external electromagnetic field that correspond to three most important …

A new exactly solvable case in strong-field quantum electrodynamics with a time-dependent
external electric field is presented. The corresponding field is given by one component of the …

Nonperturbative methods have been well developed for QED with the so-called t-electric
potential steps. In this case a calculation technique is based on the existence of specific …

The electric field inside typical conductors drops down exponentially with the screening
length determined by an intrinsic length scale of the system such as the density of mobile …

Recently, solid state materials hosting pseudospin-1 quasiparticles have attracted a great
deal of attention. In these materials, the energy band contains a pair of Dirac cones and a …

The particle creation by the so-called peak electric field is considered. The latter field is a
combination of two exponential parts, one exponentially increasing and another …