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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Quantum test of the equivalence principle for atoms in coherent superposition of internal energy states
|
|---|---|
| Published in |
Nature Communications, June 2017
|
| DOI | 10.1038/ncomms15529 |
| Pubmed ID | |
| Authors |
G. Rosi, G. D’Amico, L. Cacciapuoti, F. Sorrentino, M. Prevedelli, M. Zych, Č. Brukner, G. M. Tino |
| Abstract |
The Einstein equivalence principle (EEP) has a central role in the understanding of gravity and space-time. In its weak form, or weak equivalence principle (WEP), it directly implies equivalence between inertial and gravitational mass. Verifying this principle in a regime where the relevant properties of the test body must be described by quantum theory has profound implications. Here we report on a novel WEP test for atoms: a Bragg atom interferometer in a gravity gradiometer configuration compares the free fall of rubidium atoms prepared in two hyperfine states and in their coherent superposition. The use of the superposition state allows testing genuine quantum aspects of EEP with no classical analogue, which have remained completely unexplored so far. In addition, we measure the Eötvös ratio of atoms in two hyperfine levels with relative uncertainty in the low 10(-9), improving previous results by almost two orders of magnitude. |
X Demographics
The data shown below were collected from the profiles of 22 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Austria | 3 | 14% |
| United States | 3 | 14% |
| Central African Republic | 1 | 5% |
| South Africa | 1 | 5% |
| Japan | 1 | 5% |
| Spain | 1 | 5% |
| United Kingdom | 1 | 5% |
| Unknown | 11 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 18 | 82% |
| Scientists | 3 | 14% |
| Practitioners (doctors, other healthcare professionals) | 1 | 5% |
Mendeley readers
The data shown below were compiled from readership statistics for 85 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 2 | 2% |
| Unknown | 83 | 98% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 19 | 22% |
| Researcher | 16 | 19% |
| Student > Master | 9 | 11% |
| Student > Bachelor | 6 | 7% |
| Professor > Associate Professor | 4 | 5% |
| Other | 11 | 13% |
| Unknown | 20 | 24% |
| Readers by discipline | Count | As % |
|---|---|---|
| Physics and Astronomy | 60 | 71% |
| Computer Science | 2 | 2% |
| Earth and Planetary Sciences | 2 | 2% |
| Agricultural and Biological Sciences | 1 | 1% |
| Unspecified | 1 | 1% |
| Other | 3 | 4% |
| Unknown | 16 | 19% |
Attention Score in Context
This research output has an Altmetric Attention Score of 105. 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 07 August 2023.
All research outputs
#397,509
of 25,303,733 outputs
Outputs from Nature Communications
#6,436
of 56,077 outputs
Outputs of similar age
#8,311
of 322,746 outputs
Outputs of similar age from Nature Communications
#169
of 1,074 outputs
Altmetric has tracked 25,303,733 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 56,077 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 55.8. This one has done well, scoring higher than 88% 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 322,746 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 97% of its contemporaries.
We're also able to compare this research output to 1,074 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 84% of its contemporaries.