Rabi interferometry and sensitive measurement of the Casimir-Polder force with ultracold gases

  • We show that Rabi oscillations of a degenerate fermionic or bosonic gas trapped in a double-well potential can be exploited for the interferometric measurement of external forces at micrometer length scales. The Rabi interferometer is less sensitive but easier to implement than the Mach-Zehnder, since it does not require dynamical beam-splitting or recombination processes. As an application we propose a measurement of the Casimir-Polder force acting between the atoms and a dielectric surface. We find that even if the interferometer is fed with a coherent state of relatively small number of atoms, and in the presence of realistic experimental noise, the force might be measured with a sensitivity sufficient to discriminate between thermal and zero-temperature regimes of the Casimir-Polder potential. Higher sensitivities can be reached with bosonic spin squeezed states.

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Author:Jan Chwedeńczuk, Luca Pezzé, Francesco PiazzaORCiDGND, Augusto Smerzi
Frontdoor URLhttps://opus.bibliothek.uni-augsburg.de/opus4/108360
Parent Title (English):Physical Review A
Publisher:American Physical Society (APS)
Year of first Publication:2010
Release Date:2023/10/16
Tag:Atomic and Molecular Physics, and Optics
First Page:032104
Institutes:Mathematisch-Naturwissenschaftlich-Technische Fakultät
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik / Lehrstuhl für Theoretische Physik III