# Hermann Nicolai

Hermann Nicolai is a director at the Max-Planck-Institut für Gravitationsphysik (Albert Einstein Institut) in Potsdam, Germany. His research focus is the search for a consistent theory of quantum gravity and the unification of the fundamental interactions within the framework of supergravity, superstring theory, and beyond.

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## Vanquishing infinity

Published August 17, 2009
Quantum field theoretic extensions of Einstein’s theory of gravity tend to suffer from incurable infinities, but a theory called $N=8$ supergravity may actually avoid them—against expectations held for almost 30 years.