On the alleged equivalence of certain field theories

Rajaraman, R (1978) On the alleged equivalence of certain field theories. In: Pramana - Journal of Physics, 11 (4). pp. 491-506.

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Abstract

Abstract. We critically examine some recent claims that certain field theories with and without boson kinetic energy terms are equivalent. We point out that the crucial element in these claims is the finiteness or otherwise of the boson wavefunction renormalisation constant. We show that when this constant is finite, the equivalence proof offered in the literature fails in a direct way. When the constant is divergent, the claimed equivalence is only a consequence of improper use of divergent quantities.

Item Type:	Journal Article
Publication:	Pramana - Journal of Physics
Publisher:	Springer
Additional Information:	Copyright of this article belongs to Springer.
Keywords:	Field theory;boson wave function renormalisation constant;quantum mechanics.
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for Theoretical Studies (Ceased to exist at the end of 2003)
Date Deposited:	21 Sep 2010 07:29
Last Modified:	21 Sep 2010 07:30
URI:	http://eprints.iisc.ac.in/id/eprint/32212

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