Indian theoretical physicist Prof. Deepak Dhar was awarded the 2026 Dirac Medal by the International Centre for Theoretical Physics.
He shares it with Bernard Derrida, Marc Mezard and Haim Sompolinsky for work on statistical mechanics and complex physical systems.
He is only the second Indian to receive the medal, after string theorist Ashoke Sen in 2012.
The medal, first awarded in 1985, is given annually on Dirac's birthday, August 8, and carries US $5,000.
By statutory rule it is not awarded to current Nobel Laureates, Fields Medallists or Wolf Prize winners.
An international research institute for physical and mathematical sciences, and the awarding institution for the Dirac Medal
Drop grains of sand one at a time onto a pile. For a while nothing happens; then a single grain triggers an avalanche, and the pile settles back to a slope at which it is perpetually on the edge of collapsing again. Nobody tuned it to that state — it arrived there on its own. That is self-organised criticality, and Deepak Dhar built the mathematical foundation of the Abelian Sandpile Model that describes it. His central result is the Abelian property: no matter what order the cascading collapses occur in, the system always reaches the same exact, predictable final state. That is a striking claim about a process that looks chaotic, and it is what makes the model mathematically tractable.
Simple Analogy: Different routes through a city, all arriving at the same address.
By statutory rule, the Dirac Medal is not awarded to current Nobel Laureates, Fields Medallists or Wolf Prize winners. The purpose is deliberate: to direct recognition towards outstanding theoretical physicists who have not yet received top-tier global honours, rather than adding another award to those already decorated. Notably, several Dirac Medallists have gone on to win the Nobel Prize afterwards — the exclusion runs one way only. This design also fulfils Abdus Salam's founding vision for the ICTP, of recognising scientific brilliance across developing and developed nations alike.
Simple Analogy: A prize that looks for the people the spotlight has not yet found.
GS Paper III > Science and Technology; Awards in News
General Awareness > Awards and Honours
General Awareness > Awards
An award in theoretical physics given by the ICTP since 1985, on Dirac's birthday August 8, carrying US $5,000.
International Centre for Theoretical Physics, Trieste, founded 1964 by Abdus Salam; a UNESCO Category 1 Institute under a tripartite agreement between Italy, UNESCO and the IAEA.
The tendency of some systems to evolve on their own into a critical state where small local events can trigger large cascades.
The highest distinction in statistical physics; awarded to Deepak Dhar in 2022.