Ashoke Sen: the theoretical physicist recognised with the 2026 Oskar Klein Medal
ICTS reported on 22 October 2026 that Ashoke Sen received the Oskar Klein Medal, recognising his contributions to string theory and theoretical physics.
Ashoke Sen is an Indian theoretical physicist whose work includes string field theory, S-duality and black-hole entropy. ICTS announced on 22 October 2026 that he had received the 2026 Oskar Klein Medal, becoming the first Indian physicist to receive the honour.
Research that connects different ideas
ICTS describes Sen's work on S-duality, precision counting of black-hole entropy and string field theory as contributions that helped shape modern string theory. These are theoretical tools used to study how physical descriptions relate across regimes and how quantum ideas can be applied to gravity-related questions.
The 2026 Oskar Klein Medal
The International Centre for Theoretical Sciences announced the award on 22 October 2026. The medal is awarded by Stockholm University and the Nobel Committee for Physics of the Royal Swedish Academy of Sciences. ICTS says Sen delivered the 2026 Oskar Klein Memorial Lecture at Stockholm University's AlbaNova Centre on 22 October.
A documented public record
ICTS lists earlier honours including the Breakthrough Prize in Fundamental Physics in 2012, the Dirac Medal in 2014, the Infosys Prize in Mathematical Sciences in 2009, the Shanti Swarup Bhatnagar Prize in 1994 and the Padma Shri and Padma Bhushan. This profile sticks to institutional information about his research and awards rather than speculating about private life.
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Frequently asked questions
What is Ashoke Sen known for?
ICTS highlights his work on S-duality, black-hole entropy and string field theory in modern string theory.
What award did he receive in October 2026?
ICTS announced that he received the 2026 Oskar Klein Medal on 22 October 2026.