Pump Electron-Positron Pairs from Potential Well

TL;DR

This paper demonstrates that electron-positron pairs can be continuously generated from a one-dimensional potential well with oscillating parameters, breaking Pauli blocking and revealing bound state dynamics.

Contribution

It introduces a method to pump pairs endlessly using oscillating potential wells, highlighting the efficiency of width oscillations over depth oscillations.

Findings

Inexhaustible pair production with oscillating wells.

Width oscillations outperform depth oscillations.

Bound state diving observed in adiabatic limit.

Abstract

In this paper we show that electron-positron pairs can be pumped inexhaustibly with a constant production rate from the one dimensional potential well with oscillating depth or width. Bound states embedded in the the Dirac sea can be pulled out and pushed to the positive continuum, and become scattering states. Pauli block, which dominant the saturation of pair creation in the static super-critical potential well, can be broken by the ejection of electrons. We find that the width oscillating mode is more efficient that the depth oscillating mode. In the adiabatic limit, pair number as a function of upper boundary of the oscillating, will reveal the diving of the bound states.