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arXiv · 2306.09932

Short-term evolution of electron wave packet in a constant crossed field with radiative corrections

I. Yu. Kostyukov·E. N. Nerush·A. A. Mironov·A. M. Fedotov
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Abstract

We study the dynamics of an electron wave packet in a strong constant crossed electromagnetic field with account for radiative corrections due to interaction of the electron with the vacuum fluctuations. We evaluate a wave packet composed of the solutions to the Dyson-Schwinger equation, which describes electron propagation without emission of real photons. Spacetime dependence of the wave packet is obtained analytically for a short time interval, the more restricted from above the wider is the packet in momentum space. The radiative corrections alter the electron wavefunction, resulting in particular in a damping of the wave packet. The expectation value of the Dirac spin operator also gets modified.

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I. Yu. Kostyukov, E. N. Nerush, A. A. Mironov, A. M. Fedotov. 2023-06-16. Short-term evolution of electron wave packet in a constant crossed field with radiative corrections. https://arxiv.org/abs/2306.09932

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