Indian Physicist Deepak Dhar Wins 2026 Dirac Medal

Indian physicist Deepak Dhar has been selected as the recipient of the Dirac Medal awarded for his achievements in the theoretical physics. The award was announced on 8th August, 2026 by the Abdus Salam International Centre for Theoretical Physics (ICTP) in Trieste, Italy. He will be honoured along with the Bernard Derrida from France, Marc Mézard from Italy, and Haim Sompolinsky from Israel and the United States. It acknowledges his seminal contributions to the study of statistical mechanics and physics involving complex systems and interactions with optimisation, neuroscience and artificial intelligence.

Who Is Deepak Dhar?

Deepak Dhar is an Indian theoretical physicist whose primary contributions lie in the field of statistical mechanics and complex systems.

One of his major contributions is the investigation of collective behaviour exhibited by systems consisting of many interacting parts. Amongst his most well-known contributions lies the development of sandpile models, that have played an important role in self-organised criticality.

His research has found applications not only in the field of conventional statistical mechanics but also in the area of optimisation, theoretical neuroscience and artificial intelligence.

Deepak Dhar Bags the 2026 Dirac Medal

Dhar became one of the recipients of the 2026 Dirac Medal by the Abdus Salam International Centre for Theoretical Physics (ICTP) on August 8.

Alongside him is,

• Bernard Derrida of France
• Marc Mézard of Italy
• Haim Sompolinsky of Israel and the USA

This is in recognition of their work in the fields of equilibrium and non-equilibrium statistical mechanics, optimisation, theoretical neuroscience, and artificial intelligence.

This is yet another international honour for an Indian scientist working in the area of theoretical physics.

What is the Dirac Medal?

The Dirac Medal was instituted in 1985 by the ICTP.

The Dirac Medal is awarded every year on August 8, the birth anniversary of eminent theoretical physicist Paul Dirac.

This award is conferred upon those who have contributed significantly in the field of theoretical physics.

This carries a monetary value of US$5,000.

One of the unique aspects about this award is that it is not given to those who have been awarded Nobel Prize, Fields Medal, or Wolf Prize.

Why Was Deepak Dhar Awarded?

Dhar was awarded for his considerable contributions to the field of statistical mechanics and complex systems.

He has done considerable research in both equilibrium as well as non-equilibrium systems in which physicists analyze behavior of physical systems in equilibrium states as well as those under change.

His research into sandpile model played an important role in developing self-organised criticality theories.

His other research works, according to the citation of 2026, also include contributions related to statistical mechanics, optimization, theoretical neuroscience and artificial intelligence.

What Is Statistical Mechanics?

Statistical mechanics is a subfield of physics in which statistical and probabilistic methods are applied to systems comprising a very large number of particles.

Instead of analyzing each particle separately, statistical methods are used to analyze behavior of the whole system.

This field helps explain phenomena like,

• Phase transitions
• Equilibrium
• Non-equilibrium
• Collective effects
• Material properties
• Complex systems

Statistical mechanics finds application in various areas of physics as well as other sciences.

Deepak Dhar and the Sandpile Model

One of the most popular fields of his research is the sandpile model.

This mathematical model has been used for studying self-organised criticality, a term used to describe a condition when a system evolves spontaneously into a critical point at which relatively small things may cause a major impact.

The sandpile model became an important theory for researching the organisation of complex systems without the need for any external controller who establishes such a condition.

It was Deepak Dhar who provided the necessary mathematical basis for such studies.

Deepak Dhar’s Academic Career

Deepak Dhar pursued his academic career in both India and the USA.

The following institutions were included in Deepak Dhar’s academic curriculum,

• University of Allahabad – graduate degree received in 1970
• IIT Kanpur – Master’s degree received in 1972
• Caltech – PhD received in 1978

During his work at Caltech, Dhar was a teaching assistant of Nobel Prize-winning physicist Richard Feynman.

It is the next step in the researcher’s career.

Major other Awards Deepak Dhar has Received

The Dirac Medal for 2026 is another addition to the many accolades that Dhar has received as part of his scientific career.

In 2022, he was recognized with the Boltzmann Medal, which was a milestone achievement for him since he became the first Indian to receive this international honor in statistical mechanics.

In 2023, he was bestowed the Padma Bhushan, which is considered the third-highest civilian award in India.