A key metric employed in establishing a scientist's position in the ranking is the D-index (Discipline H-index). The D-index exclusively considers papers and citation metrics pertinent to the examined discipline—Physics in this case—ensuring that the evaluation reflects a researcher’s impact specifically within their field rather than from unrelated areas.
Scope of Research
Our ranking process evaluated 188,172 scientist profiles spanning all disciplines, including 29 scientists identified specifically within Physics. Eligibility for inclusion in the ranking required a D-index of at least 70, with the majority of an individual’s tier publications concentrated in the area of Physics. Additionally, a scientist’s awards and recognized achievements in the field of Physics were carefully considered.
The threshold for the D-index was set in increments of 10 relative to the estimated total number of scholars within each discipline, thereby ensuring that the top 1% of leading scholars in Physics are incorporated into the list. Furthermore, a proximity criterion mandates that the difference between a scientist’s general H-index and their D-index be no greater than 30%, reinforcing discipline-specific excellence.
Verification Practices
We recognize that raw bibliometric data cannot serve as an absolute measure of a scholar’s output or impact. Consequently, all scientist profiles were manually verified and cross-correlated against publications in a wide range of trustworthy and authoritative sources. This additional verification fortifies the credibility of the ranking and reduces the risk of errors or misattributions.
While the number of papers published in prominent journals and conference proceedings does not directly affect a researcher’s position in the Research.com ranking, it constitutes a valuable secondary indicator of a scientist’s contribution within their specialized area of research.
The ranking positions are ultimately established using each researcher’s D-index, derived from data curated in OpenAlex and CrossRef, which remain the most prominent and widely respected bibliometric databases available to the scientific community.
For further detailed information on the methodology employed, please refer to our methodology page.
Research.com Mission
At Research.com, our mission is to inspire researchers, industry leaders, and policymakers worldwide to gain insights into the trajectories of leading experts. We aim to provide the global scientific community with transparent access to identify who the foremost experts are in specific disciplines, across various countries, and within prominent research institutions. This ranking is a testament to our commitment to fostering recognition, collaboration, and informed decision-making in the advancement of science.
