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<p>Amal Kumar Raychaudhuri formulated the Raychaudhuri equation (Phys Rev 98(4):1123–1126, 1955a), a landmark in general relativity and arguably the most impactful physics work done from India in the quarter century after Indian independence. His 1955 paper received 195 citations even during the recent five-year period, from 2020 to 2024. Raychaudhuri wrote a scientific autobiography in Bengali describing the very difficult circumstances under which he did his famous work. The purpose of this paper is to present an annotated translation of this autobiography (Sect.&#xa0;2) and to put it in the proper historical context with an introduction and concluding remarks. Raychaudhuri obtained his famous result when working as a Research Officer at the Indian Association for the Cultivation of Science (IACS) in Calcutta in the 1950s. M.N. Saha, the Director of IACS, urged the young Raychaudhuri to align his research interests with those of some existing group and discouraged him from working on general relativity independently. Even Raychaudhuri’s job confirmation letter stipulated the humiliating criterion that he was required to “work on problems to be suggested by the Director and the Head of the Department”. Raychaudhuri accuses both M.N. Saha and S.N. Bose, the two towering figures in the physics world of Calcutta at that time, of failing to provide the right kind of leadership needed for the growth of physics in Calcutta.</p>

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“Self-questioning”: The scientific autobiography of Amal Kumar Raychaudhuri

  • 期刊论文

  • 发表日期：

    2025年11月17日

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  • Arnab Rai Choudhuri

摘要

Amal Kumar Raychaudhuri formulated the Raychaudhuri equation (Phys Rev 98(4):1123–1126, 1955a), a landmark in general relativity and arguably the most impactful physics work done from India in the quarter century after Indian independence. His 1955 paper received 195 citations even during the recent five-year period, from 2020 to 2024. Raychaudhuri wrote a scientific autobiography in Bengali describing the very difficult circumstances under which he did his famous work. The purpose of this paper is to present an annotated translation of this autobiography (Sect. 2) and to put it in the proper historical context with an introduction and concluding remarks. Raychaudhuri obtained his famous result when working as a Research Officer at the Indian Association for the Cultivation of Science (IACS) in Calcutta in the 1950s. M.N. Saha, the Director of IACS, urged the young Raychaudhuri to align his research interests with those of some existing group and discouraged him from working on general relativity independently. Even Raychaudhuri’s job confirmation letter stipulated the humiliating criterion that he was required to “work on problems to be suggested by the Director and the Head of the Department”. Raychaudhuri accuses both M.N. Saha and S.N. Bose, the two towering figures in the physics world of Calcutta at that time, of failing to provide the right kind of leadership needed for the growth of physics in Calcutta.