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arXiv · 2006.12855

Probing Surface-Bound Atoms with Quantum Nanophotonics

Daniel Hümmer·Oriol Romero-Isart·Arno Rauschenbeutel·Philipp Schneeweiss
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Abstract

Quantum control of atoms at ultrashort distances from surfaces would open a new paradigm in quantum optics and offer a novel tool for the investigation of near-surface physics. Here, we investigate the motional states of atoms that are bound weakly to the surface of a hot optical nanofiber. We theoretically demonstrate that with optimized mechanical properties of the nanofiber these states are quantized despite phonon-induced decoherence. We further show that it is possible to influence their properties with additional nanofiber-guided light fields and suggest heterodyne fluorescence spectroscopy to probe the spectrum of the quantized atomic motion. Extending the optical control of atoms to smaller atom-surface separations could create opportunities for quantum communication and instigate the convergence of surface physics, quantum optics, and the physics of cold atoms.

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Daniel Hümmer, Oriol Romero-Isart, Arno Rauschenbeutel, Philipp Schneeweiss. 2021-04-22. Probing Surface-Bound Atoms with Quantum Nanophotonics. https://doi.org/10.1103/physrevlett.126.163601

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