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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Blue-sky bifurcation of ion energies and the limits of neutral-gas sympathetic cooling of trapped ions
|
|---|---|
| Published in |
Nature Communications, August 2016
|
| DOI | 10.1038/ncomms12448 |
| Pubmed ID | |
| Authors |
Steven J. Schowalter, Alexander J. Dunning, Kuang Chen, Prateek Puri, Christian Schneider, Eric R. Hudson |
| Abstract |
Sympathetic cooling of trapped ions through collisions with neutral buffer gases is critical to a variety of modern scientific fields, including fundamental chemistry, mass spectrometry, nuclear and particle physics, and atomic and molecular physics. Despite its widespread use over four decades, there remain open questions regarding its fundamental limitations. To probe these limits, here we examine the steady-state evolution of up to 10 barium ions immersed in a gas of three-million laser-cooled calcium atoms. We observe and explain the emergence of nonequilibrium behaviour as evidenced by bifurcations in the ion steady-state temperature, parameterized by ion number. We show that this behaviour leads to the limitations in creating and maintaining translationally cold samples of trapped ions using neutral-gas sympathetic cooling. These results may provide a route to studying non-equilibrium thermodynamics at the atomic level. |
X Demographics
The data shown below were collected from the profiles of 21 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | 5% |
| Belarus | 1 | 5% |
| Poland | 1 | 5% |
| Australia | 1 | 5% |
| United States | 1 | 5% |
| United Arab Emirates | 1 | 5% |
| India | 1 | 5% |
| Brazil | 1 | 5% |
| Unknown | 13 | 62% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 20 | 95% |
| Scientists | 1 | 5% |
Mendeley readers
The data shown below were compiled from readership statistics for 45 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 2% |
| Unknown | 44 | 98% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 15 | 33% |
| Student > Master | 8 | 18% |
| Researcher | 7 | 16% |
| Professor | 4 | 9% |
| Student > Bachelor | 2 | 4% |
| Other | 6 | 13% |
| Unknown | 3 | 7% |
| Readers by discipline | Count | As % |
|---|---|---|
| Physics and Astronomy | 34 | 76% |
| Chemistry | 3 | 7% |
| Psychology | 1 | 2% |
| Agricultural and Biological Sciences | 1 | 2% |
| Neuroscience | 1 | 2% |
| Other | 3 | 7% |
| Unknown | 2 | 4% |
Attention Score in Context
This research output has an Altmetric Attention Score of 142. 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 October 2016.
All research outputs
#264,088
of 23,881,329 outputs
Outputs from Nature Communications
#3,915
of 49,947 outputs
Outputs of similar age
#5,642
of 360,025 outputs
Outputs of similar age from Nature Communications
#83
of 770 outputs
Altmetric has tracked 23,881,329 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 98th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 49,947 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 56.2. This one has done particularly well, scoring higher than 92% 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 360,025 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 98% of its contemporaries.
We're also able to compare this research output to 770 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 89% of its contemporaries.