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Physics > Atomic Physics
Title: Effects of higher-order Casimir-Polder interactions on Rydberg atom spectroscopy
(Submitted on 20 Apr 2024)
Abstract: In the extreme near-field, when the spatial extension of the atomic wavefunction is no longer negligible compared to the atom-surface distance, the dipole approximation is no longer sufficient to describe Casimir-Polder interactions. Here we calculate the higher-order, quadrupole and octupole, contributions to Casimir-Polder energy shifts of Rydberg atoms close to a dielectric surface. We subsequently investigate the effects of these higher-order terms in thin-cell and selective reflection spectroscopy. Beyond its fundamental interest, this new regime of extremely small atom surface separations is relevant for quantum technology applications with Rydberg or surface-bound atoms interfacing with photonic platforms.
Submission history
From: Athanasios Laliotis [view email][v1] Sat, 20 Apr 2024 11:29:38 GMT (939kb,D)
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