Overlap ∗

نویسنده

  • H. Neuberger
چکیده

My talk is divided into five parts. In the first part the relevance of the chiral fermion issue to fundamental particle physics and to numerical QCD will be explained. In the second part the basic ideas of the overlap construction will be reviewed. In the third part I shall focus on the algebraic (as opposed to kinematic) meaning of the overlap. In the fourth part I shall discuss in greater detail the overlap Dirac operator on the lattice. In the last part I shall deal with anomalies, the associated Berry phases and Förster-NielsenNinomiya gauge averaging in the context of naturalness. My main partner in the overlap construction was R. Narayanan. I have also collaborated with P. Huet, Y. Kikukawa, A. Yamada and P. Vranas. Important contributions to the overlap development were also made by S. Randjbar-Daemi and J. Strathdee.

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تاریخ انتشار 2008