Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/1203
Title: | Observable Dirac-type singularities in Berry's phase and the monopole |
Authors: | Bhandari, R. |
Issue Date: | 11-Mar-2002 |
Publisher: | American Physical Society |
Citation: | Physical Review Letters, 2002, Vol.88, 100403 |
Abstract: | A three-dimensional generalization of the sign-change ( π phase shift) rule for adiabatic cycles of spin-1/2 or two-state wave functions encircling a degeneracy in the parameter space of the Hamiltonian yields a Dirac-type singularity wherein any closed circuit of the adiabatic cycle in which the degeneracy is “looped” results in an observable ±2π phase shift. It is concluded that an interferometer loop similarly taken around a magnetic monopole of strength n/2 yields an observable ±2nπ phase shift, n being an integer. |
URI: | http://hdl.handle.net/2289/1203 |
ISSN: | 0031-9007 1079-7114 (online) |
Alternative Location: | http://link.aps.org/abstract/PRL/v88/e100403 http://arxiv.org/abs/quant-ph/0111123 |
Copyright: | (2002) by the American Physical Society |
Appears in Collections: | Research Papers (A&A) |
Files in This Item:
File | Description | Size | Format | |
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2002 Phy Rev Lett V88 100403p.pdf | 4p | 92.85 kB | Adobe PDF | View/Open |
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