Probing Surface-Bound Atoms with Quantum Nanophotonics

• URL: http://arxiv.org/abs/2006.12855v2
• Date: Thu, 22 Apr 2021 16:56:18 GMT
• Title: Probing Surface-Bound Atoms with Quantum Nanophotonics
• Authors: Daniel H\"ummer, Oriol Romero-Isart, Arno Rauschenbeutel, and Philipp Schneeweiss
• Abstract summary: Quantum control of atoms at ultrashort distances would open a new paradigm in quantum optics. We investigate the motional states of atoms weakly bound to the surface of a hot optical nanofiber.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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