Jainendra K. Jain

Jainendra Kumar Jain ( born 1960 in Sambhar, Rajasthan ) is an Indian theoretical solid state physicist.

Life

Jain grew up in the village of Sambhar on the eastern edge of the Thar desert in Rajasthan to. He studied at the Maharaja College, Jaipur ( bachelor's degree, 1979), the Indian Institute of Technology Kanpur ( master's degree in 1981 ) and his PhD in 1985 with Philip B. Allen at the State University of New York at Stony Brook ( SUNY ). 1986-1988 he was a post-doc at the University of Maryland and 1988/89 at Yale University. He then became Assistant Professor in 1997 and Professor at SUNY. Since 1998 he has been " Erwin W. Mueller Professor " at the Pennsylvania State University and also an Adjunct Professor at the Tata Institute of Fundamental Research in Mumbai.

From Jain, the concept dates back to composite fermions (composite fermion ), quasi-particle of an electron and a matching number of multiple " flux tubes " of the relevant at the quantum Hall effect elementary magnetic flux Φ0 = h / e, for the purpose of explanation of the fractional quantum Hall effect ( FQHE ). Jain explained in this way essential phenomena of FQHE as an integer QHE of composite fermions, thus creating a unified theory of the integer and fractional QHE. While the integer QHE was fairly well understood, this was the complex FQHE, a non- perturbative effect of the interacting electron system, previously not the case, despite initial breakthroughs by Robert B. Laughlin, F. Duncan M. Haldane and others. Jain built his 1989 established theory in many directions (for example with simulations on quantum Monte Carlo calculations ), in particular to the theory with experiment to compare.

Jain is a Fellow of the American Physical Society and the American Academy of Arts and Sciences. He was Guggenheim Fellow (1996) and Sloan Fellow (1991). In 2002 he was awarded the Oliver E. Buckley Condensed Matter Prize with Nicholas Reid and Robert Willett, who worked also on the composite fermion model. He received the Distinguished Alumnus Award, both from the University of Maryland as well as the IIT.

Writings

  • Composite fermion approach to the fractional quantum Hall effect, Phys.Rev.Lett. , Vol 63, 1989, S.199 -202
  • Theory of the fractional quantum Hall effect, Phys. Rev. B, Volume 41, 1990, pp. 7653-7665
  • Composite Fermions, Cambridge University Press 2007
  • The composite fermion - a quantum particle and its quantum liquid, Physics Today Vol 53, 2000, Issue 4
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