Observation of a gravitational Aharonov-Bohm effect
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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
2009 ◽
Vol 5
(1)
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pp. 33-49
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1999 ◽
Vol 38
(Part 1, No. 1B)
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pp. 392-395
2011 ◽
Vol 20
(05)
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pp. 951-961
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