510 citations · 4.9k across the 117 of their papers we have counts for
120 papers
The worldline formalism in strong-field QED
Christian Schubert
The worldline formalism provides an alternative to Feynman diagrams that has been found particularly useful for external-field calculations in quantum electrodynamics. Here I summa…
Master formulas for photon amplitudes in a combined constant and plane-wave background field
Christian Schubert, Rashid Shaisultanov
The worldline formalism has previously been used for deriving compact master formulas for the QED - photon amplitudes in vacuum, in a constant field and in a plane-wave field.…
The QED four-photon amplitudes off-shell: part 2
Naser Ahmadiniaz, Cristhiam Lopez-Arcos, Misha A. Lopez-Lopez +1
This is the second one of a series of four papers devoted to a first calculation of the scalar and spinor QED four-photon amplitudes completely off-shell. We use the worldline form…
Summing Feynman diagrams in the worldline formalism
Naser Ahmadiniaz, James P. Edwards, Cristhiam Lopez-Arcos +4
The worldline formalism shares with string theory the property that it allows one to write down master integrals that effectively combine the contributions of many Feynman diagrams…
Generalized Gelfand-Dikii equation for fermionic Schwinger pair production
Naser Ahmadiniaz, Sang Pyo Kim, Christian Schubert
Schwinger pair creation in a purely time-dependent electric field can be reduced to an effective quantum mechanical problem using a variety of formalisms. Here we develop an approa…
Generalized Gelfand-Dikii equation and solitonic electric fields for fermionic Schwinger pair production
Naser Ahmadiniaz, Alexander M. Fedotov, Evgeny G. Gelfer +2
In previous work on Schwinger pair creation in purely time-dependent fields, it was shown how to construct ``solitonic'' electric fields that do not create scalar pairs with an arb…