Observation of a gravitational Aharonov-Bohm effect

Author:

Overstreet Chris1ORCID,Asenbaum Peter12ORCID,Curti Joseph1ORCID,Kim Minjeong1ORCID,Kasevich Mark A.1ORCID

Affiliation:

1. Department of Physics, Stanford University, Stanford, CA 94305, USA.

2. Institute for Quantum Optics and Quantum Information (IQOQI) Vienna, Austrian Academy of Sciences, Boltzmanngasse 3, 1090 Vienna, Austria.

Abstract

Gravitational interference The Aharonov-Bohm effect is a quantum mechanical effect in which a magnetic field affects the phase of an electron wave as it propagates along a wire. Atom interferometry exploits the wave characteristic of atoms to measure tiny differences in phase as they take different paths through the arms of an interferometer. Overstreet et al . split a cloud of cold rubidium atoms into two atomic wave packets about 25 centimeters apart and subjected one of the wave packets to gravitational interaction with a large mass (see the Perspective by Roura). The authors state that the observed phase shift is consistent with a gravitational Aharonov-Bohm effect. —ISO

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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