Advances in QED with intense background fields

Upcoming and planned experiments combining increasingly intense lasers and energetic particle beams will access new regimes of nonlinear, relativistic, quantum effects. This improved experimental capability has driven substantial progress in QED in intense background fields. We review here the advances made during the last decade, with a focus on theory and phenomenology. As ever higher intensities are reached, it becomes necessary to consider processes at higher orders in both the number of scattered particles and the number of loops, and to account for non-perturbative physics (e.g. the Schwinger effect), with extreme intensities requiring resummation of the loop expansion. In addition to increased…

• DF
  Deutsche Forschungsgemeinschaft

  Awards: FOR2783/1, 416607684, FOR2783, EXC 2121, 390833306
• RF
  Russian Foundation for Basic Research

  Award: 20-52-12046
• V
  Vetenskapsrådet

  Award: 2020-04327
• SA
  Science and Technology Facilities Council

  Awards: ST/X000494/1, ST/X000494/1
• R
  RIKEN
• DO
  Division of Mathematical Sciences