Barnett, Stephen M., Speirits, Fiona C. and Babiker, Mohamed orcid.org/0000-0003-0659-5247 (2022) Optical angular momentum in atomic transitions:A paradox. Journal of Physics A: Mathematical and Theoretical. 234008. ISSN 1751-8113
Abstract
Stated simply the paradox is as follows: it is clear that the orbital angular momentum of a light beam in its direction of propagation is an intrinsic quantity, and therefore has the same value everywhere in the beam. How then can a Gaussian beam, with precisely zero orbital angular momentum, drive a (single-photon) quadrupole transition which requires the transfer of angular momentum 2 ., to an absorbing atom?.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 The Author(s |
Keywords: | atomic transitions,optical angular momentum,quadrupole transitions |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 26 Jul 2022 14:10 |
Last Modified: | 23 Jan 2025 00:30 |
Published Version: | https://doi.org/10.1088/1751-8121/ac6bd1 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1088/1751-8121/ac6bd1 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:189445 |
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