Nima Arkani-Hamed

Nima Arkani - Hamed ( born April 5, 1972 in Houston, Texas ) is a particle physicist and string theorist.

It was in 1997 at the University of California, Berkeley, at Lawrence John Hall PhD ( Supersymmetry and Hierarchies ), and from 1997 to 1999 as a post-doctoral researcher at SLAC. He was Assistant Professor and Associate Professor in 2001 at Berkeley in 1999. In 2001, he was initially a visiting professor and in 2002 professor at Harvard University. In 2008 he moved as a professor at the Institute for Advanced Study. He has Iranian roots, was born in the U.S. and holds Canadian citizenship.

He is also often a guest at Perimeter Institute in Waterloo (Ontario)

Arkani - Hamed made ​​important contributions in the field of "large extra- dimensions" ( extra space-time dimensions that are larger than the Planck length), for Deconstruction Theory ( with Howard Georgi and Andrew Cohen ), as well as to the Ghost condensation.

Once in the 1990s and 2000s a number of symmetries in the perturbation expansion, for example, quantum chromodynamics and supersymmetric Yang-Mills theories have been discovered (including through use of the twistor formalism and BCFW recursion relations ) that the number of considered Feynman diagrams greatly reduced, Arkani - Hamed was with colleagues as his doctoral Jaroslav Trnka, Jacob Bourjaly and Freddy Cachazo late 2000s a geometric explanation in the form of already known in algebraic geometry positive Grassmann manifold. The calculation of scattering amplitudes in this theory runs on determining the volumes of objects beyond the call Arkani - Hamed and colleagues Amplituhedra - this can be done with ordinary Feynman diagrams, twistor methods or geometric. Arkani - Hamed thus also hoping a vendor independent of space-time variables approach to quantum gravity to find.

In 2012 he was awarded the Fundamental Physics Prize and in 2003 the Gribov Medal. In 2008 he received the Beverly Sackler Prize in Rymond and physics. He was from 2000 to 2002 Sloan Fellow and from 2000 to 2005 Packard Fellow. He is a member of the American Academy of Arts and Sciences.

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