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Preprint Aug 2026

Spectral Localization in Cavity-Mediated Entanglement Harvesting

We investigate the relation between spectral localization and entanglement harvesting in an analytically solvable model of two qubits coupled to a leaky single-mode cavity, which in turn couples to a continuous electromagnetic bath. We derive the no-jump concurrence at a prescribed reference gate time in closed form, $...

Hao Xu · 1 citation
Preprint Aug 2026

Spectral Localization Principle for Entanglement Harvesting

We propose a unified physical principle for entanglement harvesting: the entanglement that two localized detectors can extract from a quantum field is determined solely by how localized the field's effective spectral density is. We demonstrate this in an analytically solvable model of two qubits coupled to a leaky sing...

Hao Xu · 1 citation

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