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There are many ways to spin a photon: Half-quantization of a total optical angular momentum

Overview of attention for article published in Science Advances, April 2016
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (99th percentile)
  • High Attention Score compared to outputs of the same age and source (88th percentile)

Mentioned by

news
40 news outlets
blogs
9 blogs
twitter
116 tweeters
facebook
14 Facebook pages
wikipedia
1 Wikipedia page
googleplus
19 Google+ users
reddit
1 Redditor

Citations

dimensions_citation
32 Dimensions

Readers on

mendeley
197 Mendeley
Title
There are many ways to spin a photon: Half-quantization of a total optical angular momentum
Published in
Science Advances, April 2016
DOI 10.1126/sciadv.1501748
Pubmed ID
Authors

Kyle E. Ballantine, John F. Donegan, Paul R. Eastham

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.

Twitter Demographics

The data shown below were collected from the profiles of 116 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 197 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 3 2%
Canada 2 1%
Japan 2 1%
United Kingdom 2 1%
France 1 <1%
Brazil 1 <1%
Colombia 1 <1%
India 1 <1%
Unknown 184 93%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 55 28%
Researcher 41 21%
Student > Master 19 10%
Professor 11 6%
Student > Bachelor 10 5%
Other 32 16%
Unknown 29 15%
Readers by discipline Count As %
Physics and Astronomy 118 60%
Engineering 20 10%
Chemistry 9 5%
Materials Science 5 3%
Agricultural and Biological Sciences 3 2%
Other 10 5%
Unknown 32 16%

Attention Score in Context

This research output has an Altmetric Attention Score of 495. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 17 December 2021.
All research outputs
#37,515
of 21,347,791 outputs
Outputs from Science Advances
#451
of 8,608 outputs
Outputs of similar age
#890
of 279,107 outputs
Outputs of similar age from Science Advances
#16
of 129 outputs
Altmetric has tracked 21,347,791 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 8,608 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 120.0. This one has done particularly well, scoring higher than 94% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 279,107 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 129 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 88% of its contemporaries.