307 citations · 1.8k across the 27 of their papers we have counts for
17 papers · 1 filter
Electron-positron annihilation into two photons in an intense plane-wave field
S. Bragin, A. Di Piazza
The process of electron-positron annihilation into two photons in the presence of an intense classical plane wave of an arbitrary shape is investigated analytically by employing li…
Complete treatment of single-photon emission in planar channeling
Tobias N. Wistisen, Antonino Di Piazza
Approximate solutions of the Dirac equation are found for ultrarelativistic particles moving in a periodic potential, which depends only on one coordinate, transverse to the larges…
High-energy behavior of strong-field QED in an intense plane wave
T. Podszus, A. Di Piazza
Analytical calculations of radiative corrections in strong-field QED have hinted that in the presence of an intense plane wave the effective coupling of the theory in the high-ener…
Improved local-constant-field approximation for strong-field QED codes
A. Di Piazza, M. Tamburini, S. Meuren +1
The local-constant-field approximation (LCFA) is an essential theoretical tool for investigating strong-field QED phenomena in background electromagnetic fields with complex spacet…
The impact of the quantized transverse motion on radiation emission in a Dirac harmonic oscillator
Tobias N. Wistisen, Antonino Di Piazza
We investigate the radiation emitted by an ultrarelativistic electron traveling in a 1-dimensional parabolic potential. Having in mind a simplified model for beamstrahlung, we cons…
Nonlinear trident pair production in an arbitrary plane wave: a focus on the properties of the transition amplitude
F. Mackenroth, A. Di Piazza
The process of nonlinear electron-positron pair production by an electron colliding with an arbitrary plane wave electromagnetic field (nonlinear trident pair production) is studie…
On the completeness and orthonormality of the Volkov states and the Volkov propagator in configuration space
A. Di Piazza
Volkov states and Volkov propagator are the basic analytical tools to investigate QED processes occurring in the presence of an intense plane-wave electromagnetic field. In the pre…
Nonlinear neutrino-photon interactions inside strong laser pulses
Sebastian Meuren, Christoph H. Keitel, Antonino Di Piazza
Even though neutrinos are neutral particles and interact only via the exchange of weak gauge bosons, charged leptons and quarks can mediate a coupling to the photon field beyond tr…
Nonlinear double Compton scattering in the full quantum regime
F. Mackenroth, A. Di Piazza
A detailed analysis of the process of two photon emission by an electron scattered from a high-intensity laser pulse is presented. The calculations are performed in the framework o…
Polarization of the electron and positron produced in combined Coulomb and strong laser fields
A. Di Piazza, A. I. Milstein, C. Müller
The process of production in the superposition of a Coulomb and a strong laser field is considered. The pair production rate integrated over the momentum and summed over t…
Nonlinear Compton scattering in ultra-short laser pulses
F. Mackenroth, A. Di Piazza
A detailed analysis of the photon emission spectra of an electron scattered by a laser pulse containing only very few cycles of the carrying electromagnetic field is presented. The…
Barrier control in tunneling e^+ e^- photoproduction
A. Di Piazza, E. Lötstedt, A. I. Milstein +1
Tunneling electron-positron pair production is studied in a new setup in which a strong low-frequency and a weak high-frequency laser field propagate in the same direction and coll…
Photon polarization as a probe for quark-gluon plasma dynamics
Andreas Ipp, Antonino Di Piazza, Jörg Evers +1
Prospects of measuring polarized photons emitted from a quark-gluon plasma (QGP) are discussed. In particular, the detection of a possible quark spin polarization in a QGP using ci…
Non-perturbative vacuum-polarization effects in proton-laser collisions
A. Di Piazza, K. Z. Hatsagortsyan, C. H. Keitel
In the collision of a high-energy proton beam and a strong laser field, merging of the laser photons can occur due to the polarization of vacuum. The probability of photon merging…
Production of light particles by very strong and slowly varying magnetic fields
Giorgio Calucci, Antonino Di Piazza
The possibility that around some astrophysical objects there are non-static magnetic fields of enormous intensity suggests that in these situations real particles may be produced.…
Photon splitting in a laser field
A. Di Piazza, A. I. Milstein, C. H. Keitel
Photon splitting due to vacuum polarization in a laser field is considered. Using an operator technique, we derive the amplitudes for arbitrary strength, spectral content and polar…
Particle production in a strong, slowly-varying magnetic field with an application to astrophysics
Antonino Di Piazza
In this work I studied the production of particles (electron-positron pairs and photons) in the presence of overcritic () slowly varying magnetic…