Realization of a complete Stern-Gerlach interferometer: towards a test of quantum gravity

Ron Folman

doi:10.1117/12.2657176

9 March 2023 Realization of a complete Stern-Gerlach interferometer: towards a test of quantum gravity

Ron Folman

Proceedings Volume PC12447, Quantum Sensing, Imaging, and Precision Metrology; PC1244716 (2023) https://doi.org/10.1117/12.2657176
Event: SPIE Quantum West, 2023, San Francisco, California, United States

Abstract

The Stern-Gerlach effect, found a century ago, has become a paradigm of quantum mechanics. Unexpectedly, until recently, there has been little evidence that the original scheme with freely propagating atoms exposed to gradients from macroscopic magnets is a fully coherent quantum process. Several theoretical studies have explained why a Stern-Gerlach interferometer is a formidable challenge. Here, we provide a detailed account of the realization of a full-loop Stern-Gerlach interferometer for single atoms and use the acquired understanding to show how this setup may be used to realize an interferometer for macroscopic objects doped with a single spin. Such a realization would open the door to a new era of fundamental probes, including the realization of previously inaccessible tests at the interface of quantum mechanics and gravity.

Conference Presentation

Citation Download Citation

Ron Folman "Realization of a complete Stern-Gerlach interferometer: towards a test of quantum gravity", Proc. SPIE PC12447, Quantum Sensing, Imaging, and Precision Metrology, PC1244716 (9 March 2023); https://doi.org/10.1117/12.2657176

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