Abhay Ashtekar

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Abhay Ashtekar bigraphy, stories - Physicists

Abhay Ashtekar : biography

July 5, 1949 –

Abhay Vasant Ashtekar (born July 5, 1949) is an Indian theoretical physicist. He is the Eberly Professor of Physics and the Director of the Institute for Gravitational Physics and Geometry at Pennsylvania State University. As the creator of Ashtekar variables, he is one of the founders of loop quantum gravity and its subfield loop quantum cosmology. He has also written a number of descriptions of loop quantum gravity that are accessible to non-physicists. In 1999, Ashtekar and his colleagues were able to calculate the entropy for a black hole, matching a legendary 1974 prediction by Hawking. Oxford mathematical physicist Roger Penrose has described Ashtekar’s approach to quantum gravity as "The most important of all the attempts at ‘quantizing’ general relativity."

Biography

Abhay Ashtekar grew up in several cities, including Mumbai, in the state of Maharashtra, India. After completing his undergraduate education in India, Ashtekar enrolled in the graduate program for gravitation at the University of Texas at Austin. He went on to complete his Ph.D. at the University of Chicago under Prof. Robert Geroch in 1974 (thesis titled: "Asymptotic Structure of the Gravitational Field at Spatial Infinity") and held several appointments at Oxford, Paris, Syracuse before settling at Penn State. He married Christine Clarke in 1986 and the two have a son, Neil Ashtekar.

Books

  1. A. Magnon and A. Ashtekar, Translation from French of Élie Cartan’s work, "Sur les Varietes a Connexion Affine et la Relativite Generale" with a Commentary and Foreword by A. Trautman. Bibliopolis, Naples, 1986, 199 pages.
  2. A. Ashtekar, Asymptotic Quantization. Bibliopolis, Naples, 1987, 107 pages.
  3. A. Ashtekar, (with invited contributions) New Perspectives in Canonical Gravity.Bibliopolis, Naples, 1988, 324 pages.
  4. A. Ashtekar and J. Stachel, Editors; Conceptual Problems of Quantum Gravity. Proceedings of the 1988 Osgood Hill Conference (Birkhauser, N. Y., 1991), 602 pages.
  5. A. Ashtekar, Lectures on Non-perturbative Canonical Gravity, (Notes prepared in collaboration with R.S. Tate), (World Scientific Singapore, 1991), 334 pages.
  6. A. Ashtekar, R.C. Cohen, D. Howard, J. Renn, S. Sarkar and A. Shimony (Editors), Revisiting the Foundations of Relativistic Physics, Festschrift in honor of John Stachel, Boston Studies in Philosophy of Science, Volume 234, (Kluwer Academic, 2003).