Sensitive measurement of forces at the micron scale using Bloch oscillations of ultracold atoms

We show that Bloch oscillations of ultracold fermionic atoms in the periodic potential of an optical lattice can be used for a sensitive measurement of forces at the micrometer length scale, e.g., in the vicinity of a dielectric surface. In particular, the proposed approach allows us to perform a lo...

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Veröffentlicht in:	Physical review letters 2005-08, Vol.95 (9), p.093202.1-093202.4, Article 093202
Hauptverfasser:	CARUSOTTO, I, PITAEVSKII, L, STRINGARI, S, MODUGNO, G, INGUSCIO, M
Format:	Artikel
Sprache:	eng
Schlagworte:	Atom interferometry techniques Atomic and molecular physics Atomic properties and interactions with photons ATOMS CASIMIR EFFECT CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS Classical and quantum physics: mechanics and fields DIELECTRIC MATERIALS Exact sciences and technology FERMIONS Matter waves Mechanical control of atoms, molecules and ions Optical cooling of atoms trapping OSCILLATIONS PERIODICITY Photon interactions with atoms Physics POTENTIALS SURFACES
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Zusammenfassung:	We show that Bloch oscillations of ultracold fermionic atoms in the periodic potential of an optical lattice can be used for a sensitive measurement of forces at the micrometer length scale, e.g., in the vicinity of a dielectric surface. In particular, the proposed approach allows us to perform a local and direct measurement of the Casimir-Polder force which is, for realistic experimental parameters, as large as 10(-4) gravity.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/physrevlett.95.093202