Research Collaboration Index · 2026
North America · Platinum standing
Strongest in Physics & Astronomy, at #20 in the world.
The profile
By subject
World rank in each of the 26 subject indices; gold cards mark top-500 standings. Click through to any full subject ranking.
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Featured academics
Independently verified: current affiliation, public profile and published contact confirmed from the open record.
Rolston chairs one of America's largest physics departments and was a co-founder of the Joint Quantum Institute, the flagship partnership between Maryland and NIST. His ultracold atom and Rydberg physics experiments underpin quantum networking and sensing, and he helps lead national efforts to train the emerging quantum workforce.
Hultman founded and directs the Center for Global Sustainability, whose analyses of national climate commitments inform the Paris Agreement process. He has advised United States federal and subnational climate strategy, co-leads major assessments of high ambition decarbonisation pathways, and convenes governments, researchers and civil society across continents.
Abraham is a leading empirical labour economist, a former Commissioner of the US Bureau of Labor Statistics and member of the Council of Economic Advisers. Currently President of the American Economic Association, she studies the gig economy, labour force participation and economic measurement, and chairs national statistical advisory bodies.
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