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There are many ways to spin a photon : half-quantization of a total optical angular momentum
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dc.contributor.author | Ballantine, Kyle E. | |
dc.contributor.author | Donegan, John F. | |
dc.contributor.author | Eastham, Paul R. | |
dc.date.accessioned | 2016-08-18T09:30:18Z | |
dc.date.available | 2016-08-18T09:30:18Z | |
dc.date.issued | 2016-04-29 | |
dc.identifier.citation | Ballantine , K E , Donegan , J F & Eastham , P R 2016 , ' There are many ways to spin a photon : half-quantization of a total optical angular momentum ' , Science Advances , vol. 2 , no. 4 , e1501748 . https://doi.org/10.1126/sciadv.1501748 | en |
dc.identifier.issn | 2375-2548 | |
dc.identifier.other | PURE: 245112290 | |
dc.identifier.other | PURE UUID: 43af4131-6b61-4c2d-962a-bd29f0bd8ddf | |
dc.identifier.other | Bibtex: urn:3b4cedf511150a66309086e8ce52dc18 | |
dc.identifier.other | Scopus: 85010413270 | |
dc.identifier.other | WOS: 000380072100035 | |
dc.identifier.uri | https://hdl.handle.net/10023/9322 | |
dc.description | This work was supported by the Higher Education Authority of Ireland under PRTLI (Programme for Research in Third-Level Institutions) funding cycle 5 and by Science Foundation Ireland (09/SIRG/I1592, 12/RC/2278). | en |
dc.description.abstract | The angular momentum of light plays an important role in many areas, from optical trapping to quantum information. In the usual three-dimensional setting, the angular momentum quantum numbers of the photon are integers, in units of the Planck constant ħ. We show that, in reduced dimensions, photons can have a half-integer total angular momentum. We identify a new form of total angular momentum, carried by beams of light, comprising an unequal mixture of spin and orbital contributions. We demonstrate the half-integer quantization of this total angular momentum using noise measurements. We conclude that for light, as is known for electrons, reduced dimensionality allows new forms of quantization. | |
dc.format.extent | 8 | |
dc.language.iso | eng | |
dc.relation.ispartof | Science Advances | en |
dc.rights | Copyright © 2016, The Authors. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. | en |
dc.subject | Physics | en |
dc.subject | Quantum optics | en |
dc.subject | Optical angular momentum | en |
dc.subject | QC Physics | en |
dc.subject | NDAS | en |
dc.subject.lcc | QC | en |
dc.title | There are many ways to spin a photon : half-quantization of a total optical angular momentum | en |
dc.type | Journal article | en |
dc.description.version | Publisher PDF | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.identifier.doi | https://doi.org/10.1126/sciadv.1501748 | |
dc.description.status | Peer reviewed | en |
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