Abdus Salam shared the 1979 Nobel Prize in Physics for helping to unify two of nature's fundamental forces, yet the scientist who became Pakistan's first and so far only Nobel science laureate remains far less celebrated in his homeland than abroad. The Royal Swedish Academy of Sciences recognized Salam alongside Sheldon Glashow and Steven Weinberg for their contributions to the theory of the unified weak and electromagnetic interaction between elementary particles, including the prediction of the weak neutral current.
Salam's specific contribution was to incorporate the Higgs mechanism, co-discovered by his Imperial College London colleague Tom Kibble, into electroweak theory. As Imperial theorist Claudia de Rham said in a 2024 interview, Salam's work «changed the way we see the world by underlining the importance of symmetry and by showing how some forces — which may appear different — are actually linked.»
Born on 29 January 1926 in the Punjabi city of Jhang, then part of British India, Salam was a child prodigy. He studied mathematics at Government College, Lahore, completing his master's degree in 1946 with record marks of 765 out of 850, or 90 percent. That same year he won a scholarship to St John's College, Cambridge, where he studied mathematics and then physics, earning a double first-class honours in 1949.
After completing his PhD in quantum electrodynamics at Cambridge in 1951, Salam returned to Pakistan to take up a teaching post at Government College, hoping to build a research base in the young country. But lacking journals, colleagues and proper scientific infrastructure, he concluded he could not stay. «Either I must leave my country or leave physics,» he said. «And with great anguish I chose to leave my country.»
In 1954 Salam returned to Cambridge for three years before being appointed professor of applied mathematics at Imperial College in 1957. He later moved to Imperial's physics department, where he established a renowned theoretical-physics group that he led for much of the rest of his life. In 1964 he founded the International Centre for Theoretical Physics in Trieste, Italy, to support physicists from developing nations.
Pakistan remained in his heart. Salam served for 13 years as presidential science adviser and in the 1970s played a somewhat murky role in the country's nuclear-weapon programme. When he won the Nobel Prize in 1979, Pakistan had existed for only 32 years, making it, along with Austria, the joint 13th quickest nation to win a Nobel Prize in Physics.
At the official Nobel banquet in Stockholm on 10 December 1979, Salam thanked the Nobel Foundation and the Royal Swedish Academy of Sciences. «Pakistan,» he declared, «is deeply indebted to you for this.»
Yet back home, little was made of the award. Most Pakistanis are Sunnis, but Salam was an Ahmadi, part of a minor Islamic movement founded in the late 19th century by Mirza Ghulam Ahmad. In 1974, Pakistan's parliament declared Ahmadis non-Muslims, and the constitution was altered to reflect that fact. The decision profoundly affected Salam. «Declared non Muslim. Cannot cope,» he wrote in his diary. Having previously been largely a cultural Muslim, he now saw his religious beliefs re-awakened.
Pakistan eventually offered formal recognition in the form of a two rupee stamp in 1998, but it has done surprisingly little else. In 2016, then prime minister Nawaz Sharif announced plans to rename the National Centre for Physics at Quaid-i-Azam University in Islamabad as the Professor Abdus Salam Centre for Physics, but that has not taken place.
Imperial College, by contrast, renamed its main library in Salam's honour in 2023 and has been celebrating the centenary of his birth. The ICTP was renamed after him in 1997. A few years ago, Zakir Thaver and Omar Vandal produced a documentary film, Salam: the First ****** Nobel Laureate, directed by physicist Anand Kamalakar, exploring the strange relationship between Salam and Pakistan.
Salam died in 1996 after suffering from a neurodegenerative disease. His scientific legacy endures through the electroweak theory he helped build, the institutions he founded, and the generations of physicists from developing countries who benefited from his efforts. Yet the contrast between his international recognition and his marginalization at home remains a striking case study in how politics, religion and science can collide.
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