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arXiv · 2607.20236

Entanglement dynamics through electromagnetic interactions in single-electron traps

Pablo Guillermo Carmona Rufo·Anupam Mazumdar·Carlos Sabín
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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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Pablo Guillermo Carmona Rufo, Anupam Mazumdar, Carlos Sabín. 2026-07-22. Entanglement dynamics through electromagnetic interactions in single-electron traps. https://arxiv.org/abs/2607.20236

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