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Attention Score in Context
| Title |
Direct measurement of the biphoton Wigner function through two-photon interference
|
|---|---|
| Published in |
Scientific Reports, December 2013
|
| DOI | 10.1038/srep03530 |
| Pubmed ID | |
| Authors |
T. Douce, A. Eckstein, S. P. Walborn, A. Z. Khoury, S. Ducci, A. Keller, T. Coudreau, P. Milman |
| Abstract |
The Hong-Ou-Mandel (HOM) experiment was a benchmark in quantum optics, evidencing the non-classical nature of photon pairs, later generalized to quantum systems with either bosonic or fermionic statistics. We show that a simple modification in the well-known and widely used HOM experiment provides the direct measurement of the Wigner function. We apply our results to one of the most reliable quantum systems, consisting of biphotons generated by parametric down conversion. A consequence of our results is that a negative value of the Wigner function is a sufficient condition for non-gaussian entanglement between two photons. In the general case, the Wigner function provides all the required information to infer entanglement using well known necessary and sufficient criteria. The present work offers a new vision of the HOM experiment that further develops its possibilities to realize fundamental tests of quantum mechanics using simple optical set-ups. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Italy | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 67 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 2 | 3% |
| Italy | 1 | 1% |
| United Kingdom | 1 | 1% |
| Austria | 1 | 1% |
| Japan | 1 | 1% |
| China | 1 | 1% |
| Unknown | 60 | 90% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 22 | 33% |
| Researcher | 11 | 16% |
| Student > Master | 9 | 13% |
| Professor | 8 | 12% |
| Student > Postgraduate | 3 | 4% |
| Other | 7 | 10% |
| Unknown | 7 | 10% |
| Readers by discipline | Count | As % |
|---|---|---|
| Physics and Astronomy | 54 | 81% |
| Engineering | 3 | 4% |
| Environmental Science | 1 | 1% |
| Chemistry | 1 | 1% |
| Neuroscience | 1 | 1% |
| Other | 0 | 0% |
| Unknown | 7 | 10% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. 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 27 December 2014.
All research outputs
#17,708,224
of 22,738,543 outputs
Outputs from Scientific Reports
#86,465
of 122,582 outputs
Outputs of similar age
#222,073
of 305,967 outputs
Outputs of similar age from Scientific Reports
#425
of 659 outputs
Altmetric has tracked 22,738,543 research outputs across all sources so far. This one is in the 19th percentile – i.e., 19% of other outputs scored the same or lower than it.
So far Altmetric has tracked 122,582 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 18.2. This one is in the 24th percentile – i.e., 24% of its peers scored the same or lower than it.
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 305,967 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 24th percentile – i.e., 24% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 659 others from the same source and published within six weeks on either side of this one. This one is in the 28th percentile – i.e., 28% of its contemporaries scored the same or lower than it.