Can I read Two-color Phase-of-the-phase Spectroscopy Applied to Nonperturbative Electron-positron Pair Production in Strong Oscillating Electric Fields on EtoBox?

Two-color Phase-of-the-phase Spectroscopy Applied to Nonperturbative Electron-positron Pair Production in Strong Oscillating Electric Fields by Braß, J.; Milbradt, R.; Villalba-Chávez, S.; Paulus, G. G.; Müller, C. is a scholarly article available to read on EtoBox.

What is Two-color Phase-of-the-phase Spectroscopy Applied to Nonperturbative Electron-positron Pair Production in Strong Oscillating Electric Fields about?

Production of electron-positron pairs from vacuum in strong bichromatic electric fields, oscillating in time with a fundamental frequency and its second harmonic, is studied. Strong-field processes occuring in such field configurations are generally known to be sensitive to the relative phase between the field modes. Phase-of-the-phase spectroscopy has recently been introduced in the context of strong-field photoionization as a systematic means to analyze these coherence effects. We apply this method to field-induced pair production by calculating the phase dependence of the momentum-resolved particle yields. We show that asymmetric checkerboard patterns arise in the phase-of-the-phase spectra, similarly to those found in strong-field photoionization. The physical origin of these characteristic structures, which differ between the created electron and positron, are discussed.

Author

Braß, J.; Milbradt, R.; Villalba-Chávez, S.; Paulus, G. G.; Müller, C.

Published

2019

Language

EN