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arXiv:2607.20236

Entanglement dynamics through electromagnetic interactions in single-electron traps

Pablo Guillermo Carmona Rufo, Anupam Mazumdar, Carlos Sabín

quant-phSubmitted Jul 22, 2026• Announced Jul 23, 2026• 0 citations
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Abstract

We study the dynamics of quantum entanglement between two harmonically trapped electrons interacting via the electromagnetic force. Starting from two-mode Gaussian states at thermal equilibrium, we make use of the covariance matrix formalism in order to compute the logarithmic negativity of the evolved state as a quantitative measure of entanglement. We analyze two initial configurations: thermal single-mode and two-mode squeezed states, and describe the time evolution of entanglement in the system for different values of squeezing and temperature, while identifying the parameter regimes accessible to current and near-future single-electron trap experiments.

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11 pages, 2 figures

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