Effects of control fields on the pair creation and the vacuum information transmission

TL;DR

This paper investigates how control fields influence pair creation and information transmission in the Dirac vacuum, revealing sensitivity to field parameters and potential for experimental applications.

Contribution

It introduces a computational quantum field theory approach to analyze the effects of control fields on pair creation and vacuum information transmission.

Findings

Oscillation structures in energy spectra depend on control field parameters.

Pair yield varies significantly with control field frequency.

Vacuum modes encode information through changes in pair-creation rates.

Abstract

The effects of control fields on the energy spectra and the number of created pairs and the information transmission by the Dirac vacuum modes are investigated by employing computational quantum field theory approach. It is found that the oscillation structures on the energy spectra are sensitive to the direction, the width, and the oscillation frequency of control fields. The pair yield can have obvious changes for a small frequency and a very large frequency. Moreover, the information encoded in the control fields, such as the field direction, the laser frequency and the time interval between two laser pulses, can also embodied by the vacuum modes in the change of pair-creation rate with time. These results not only can deepen our understanding of the control of pair creation and the information transmission, but also can provide a theoretical reference to the related experiments in the future.