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Application of Coherent State Approach for the Cancellation of Infrared Divergences to All Orders in LFQED

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Abstract

We sketch an all order proof of cancellation of infrared (IR) divergences in light front quantum electrodynamics using a coherent state formalism. In this talk, it has been shown that the true IR divergences in fermion self energy are eliminated to all orders in a light-front time-ordered perturbative calculation if one uses coherent state basis instead of the usual Fock basis to calculate the Hamiltonian matrix elements.

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Authors and Affiliations

  1. Department of Physics, University of Mumbai, SantaCruz (East), Mumbai, 400098, India

    Jai More & Anuradha Misra

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  1. Jai More
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  2. Anuradha Misra
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Correspondence to Jai More.

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More, J., Misra, A. Application of Coherent State Approach for the Cancellation of Infrared Divergences to All Orders in LFQED. Few-Body Syst 56, 551–557 (2015). https://doi.org/10.1007/s00601-014-0932-1

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  • DOI: https://doi.org/10.1007/s00601-014-0932-1

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