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    • On the alleged equivalence of certain field theories

      R Rajaraman

      Nuclear And Particle Physics Volume 11 Issue 4 October 1978 pp 491-506

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/011/04/0491-0506

    • Keywords

       

      Field theory; boson wave function renormalisation constant; quantum mechanics

    • 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.

    • Author Affiliations

       

      R Rajaraman1

      1. Centre for Theoretical Studies, Indian Institute of Science, Bangalore - 560 012

    • Dates

       
      Published
      October 1978
      Manuscript received
      10 May 1978

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