Prof. Jainendra K. Jain Honoured with Wolf Prize in Physics for Composite Fermions Discovery

Wolf Prize in Physics for his discovery of composite fermions and contributions to quantum physics.

MUMBAI (India CSR): Prof. Jainendra K. Jain, one of the world’s foremost theoretical physicists, has received the prestigious Wolf Prize in Physics for his discovery of composite fermions at a ceremony in Jerusalem, Israel on June 18. Prof. Jain, who grew up in the small Rajasthan town of Sambhar on the edge of the Thar Desert in Rajasthan, is the Founding Director of the newly established Lodha Theoretical Physics Institute (LTPI) and serves as Evan Pugh University Professor and Eberly Family Chair in Physics at Pennsylvania State University, USA. The award was presented by Isaac Herzog, President of Israel, at a state ceremony in the Israeli Knesset.

The Wolf Prize in Physics, awarded annually by the Wolf Foundation in Israel since 1978, honours outstanding physicists whose discoveries have profoundly advanced human knowledge. It is widely regarded as one of the most prestigious awards in physics. Twenty-seven previous recipients of the Wolf Prize in Physics have subsequently received the Nobel Prize. Prof. Jain is the first person of Indian origin to receive the Wolf Prize in Physics.

Commenting on the award, Prof. Jain said: “I am deeply honoured by this recognition. Physics has given me far more than I could ever have imagined when I began this journey as a young boy growing up in rural Rajasthan. I feel immensely fortunate and am grateful to my teachers, students, collaborators, family, and friends, and to the many scientists whose work laid the foundation for my own. The opportunity to spend a lifetime trying to understand nature is a privilege beyond measure.”

THE DISCOVERY

The breakthrough for which Prof. Jain is now receiving global recognition came in 1989, when he was a young postdoctoral scholar at Yale University. He turned his attention to one of the most perplexing mysteries in physics: the fractional quantum Hall effect. Experiments had revealed that electrons in ultra-thin semiconductor layers, when placed in a powerful magnetic field, exhibited baffling behaviour. Their electronic conductivity values appeared in precise fractions that defied conventional understanding and called for a new theoretical framework.

The moment of insight came to Jain when he was doodling during a commercial break on television. He suddenly realized that the experiments could be understood when viewed in terms of a new kind of particles, which are created when electrons bind to tiny quantum vortices. He named these particles composite fermions. Published in the journal Physical Review Letters in 1989, this single theoretical insight provided an elegant and unified explanation that brought unprecedented clarity to the fractional quantum Hall effect. The precise sequences of fractions that his theory predicted are now known as the Jain sequences or the Jain states, and composite fermions have become a central concept in modern condensed matter physics.

Decades later, Prof. Jain’s pioneering work continues to shape the frontiers of modern physics. Composite fermions have revealed a rich variety of exotic quantum states, some of which are believed to possess remarkable topological properties. These discoveries have helped inspire new approaches to quantum computation that seek to exploit such states to build quantum bits that are protected from certain sources of error.

Prof. Jain has coauthored more than 250 scientific articles and a monograph Composite Fermions, published in 2007 by the Cambridge University Press. Among his other honours are the Oliver E. Buckley Prize of the American Physical Society, Distinguished Alumnus Award of the Indian Institute of Technology, Kanpur, and election to the United States National Academy of Sciences, American Academy of Arts and Science, and the Indian National Science Academy. He is widely regarded as one of the world’s foremost theoretical physicists.

As his pioneering work continues to shape the frontiers of modern physics, Lodha Foundation congratulates him on being recognised as a Wolf Prize Laureate. This exceptional honour is a moment of immense pride for the Foundation and a fitting tribute to contributions that have transformed our understanding of the quantum world.

THE JOURNEY

Prof. Jain’s path to scientific recognition began far from the world’s major research centres. Growing up in rural Rajasthan, he was fascinated by physics and decided to become a physicist at a very early age. The story of the Indian physicist Satyendra Nath Bose and his interaction with Albert Einstein, which he encountered in a children’s magazine, made a lasting impression on the young Jain.

But the road ahead would not be smooth. At the age of 12, while visiting family in Kolkata, a tram collided with his family’s car. His mother never regained consciousness, and Jain himself suffered critical injuries that ultimately resulted in a lifelong disability. When he returned to Sambhar months later, on crutches, the future suddenly was uncertain. His ambition of pursuing higher education and a career in physics seemed out of reach.

It was the revolutionary low-cost Jaipur Foot prosthetic, developed by Dr. P.K. Sethi and craftsman Ram Chandra Sharma, that helped him walk again and continue his education. He went on to earn a bachelor’s degree from Maharaja College in Jaipur, a master’s degree from IIT Kanpur, and a Ph.D. from Stony Brook University in New York. When he boarded a plane for the United States in 1981 at the age of twenty-one, it was the first flight of his life.

From those beginnings emerged a scientific career that has reshaped our understanding of quantum matter and inspired generations of physicists around the world.

THE WOLF PRIZE

In addition to physics, the Wolf Prize is awarded in Agriculture, Chemistry, Mathematics, Medicine, and the Arts. Two scientists of Indian origin have received Wolf Prize in Agriculture: Dr. Gurdev Singh Khush, who was recognised for his contributions to the Green Revolution, and plant biologist Dr. Venkatesan Sundaresan. Conductor Zubin Mehta received the Wolf Prize in Music.