The development of a self-sustained quantum electrodynamical (QED) cascade in single strong laser pulse is studied analytically and numerically. A hydrodynamical approach used to construct an analytical model evolution, which includes the key features observed 3D QED particle-in-cell (QED-PIC) simulations, such as magnetic field dominance plasma energy absorption. equations are derived closed f...

After a brief review of higher-order QED effects, a survey is made of novel aspects of QED with emphasis on recent experimental results in strong-field QED: nonlinear Compton scattering and multiphoton pair creation by light. 1 Higher-Order QED Effects Quantum Electrodynamics (QED) describes the interactions between charged particles that are mediated by quanta (photons) of the electromagnetic ...

Investigations of heavy few-electron atoms provide an excellent opportunity for testing QED in strong Coulomb fields. A remarkable high experimental precision has been reached in Lamb-shift measurements of Li-like ions. The uncertainty obtained e.g. for the 2p1/2 2s transition energy in Li-like Ni and Zn [1], Ag and Xe [2, 3] and U [4] is by an order of magnitude smaller than the QED contributi...

I study a class of lattice versions of QED with fermions with the aim of clarifying the relationship between the fermion spectrum (doubled or not), continuous chiral symmetry, the range of the lattice interactions, and the validity of perturbation theory. Theories of this class with an undoubled spectrum, such as the SLAC formulation, have infiniterange interactions and infrared-divergent pertu...

Experimental tests of quantum electrodynamics (QED) have developed dramatically for simple systems of hydrogen and helium, but there has also been significant progress for medium-Z hydrogenic and helium-like atoms over the last few years. In this area, tests are often based on X-ray spectroscopic measurements, and here we review some key developments. Of particular interest is the status of few...

Recent experimental advances in the field of cavity quantum electrodynamics (QED) have opened new possibilities for control of atom-photon interactions. A laser with “one and the same atom” demonstrates the theory of laser operation pressed to its conceptual limit [1]. The generation of single photons on demand and the realization of cavity QED with well defined atomic numbers N = 0,1,2, ... bo...

Quantum electrodynamical (QED) birefringence in a thermal relativistic pair plasma with the presence of the strong crossed field: E0 ⊥ B0, is proposed and investigated. We clarify the coupling relationship and competition between the QED effect and the plasma collective effect and find the critical condition that makes the birefringence vanish. In a relative weak electromagnetic field, the bire...