March-Russell, John and Preskill, John and Wilczek, Frank (1992) Internal frame dragging and a global analog of the Aharonov-Bohm effect. Physical Review Letters, 68 (17). pp. 2567-2571. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:MARprl92
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It is shown that the breakdown of a global symmetry group to a discrete subgroup can lead to analogs of the Aharonov-Bohm effect. At sufficiently low momentum transfer, the cross section for scattering of a particle with nontrivial Z2 charge off a global vortex is almost equal to (but definitely different from) maximal Aharonov-Bohm scattering; the effect goes away at large momentum transfer. The scattering of a spin-1/2 particle off a magnetic vortex provides an amusing experimentally realizable example.
|Additional Information:||©1992 The American Physical Society Received 20 December 1991 We gratefully thank Mark Alford for stimulating discussions, and acknowledge NSF Grant No. NSF-PHY-90-21984 and DOE Grants No. DE-AC03-81-ER40050 and No. DE-FG02-90-ER40542 for support.|
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|Deposited On:||05 Dec 2006|
|Last Modified:||26 Dec 2012 09:20|
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