Spin Squeezing in Electron Microscopy

• URL: http://arxiv.org/abs/2507.09243v1
• Date: Sat, 12 Jul 2025 10:31:04 GMT
• Title: Spin Squeezing in Electron Microscopy
• Authors: Shiran Even-Haim, Ethan Nussinson, Roni Ben-Maimon, Alexey Gorlach, Ron Ruimy, Ephraim Shahmoon, Osip Schwartz, Ido Kaminer,
• Abstract summary: We show theoretically that spin squeezing is a natural fit for improving the signal-to-noise ratio (SNR) in electron microscopy.<n>Our results connect the fields of quantum metrology and electron interferometry, paving the way toward electron microscopy with SNR beyond the shot-noise limit.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Quantum metrology experiments in atomic physics and quantum optics have demonstrated measurement accuracy beyond the shot-noise limit via multi-particle entanglement. At the same time, electron microscopy, an essential tool for high-resolution imaging of biological systems, is severely constrained in its signal-to-noise ratio (SNR) by shot noise, due to the dose limit imposed by electron beam-induced damage. Here, we show theoretically that spin squeezing, a form of quantum metrology based on entanglement, is a natural fit for improving the SNR in electron microscopy. We investigate the generation of the necessary entangled states through electron-electron Coulomb interactions and quantum non-demolition measurements. Our results connect the fields of quantum metrology and electron interferometry, paving the way toward electron microscopy with SNR beyond the shot-noise limit.

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