A variational principle for bound states in quantum field theory |
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| Authors: | J Greensite MB Halpern |
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| Institution: | Department of Physics and Astronomy, San Francisco State University, 1600 Holloway Avenue, San Francisco, California 94132, USA;Department of Physics, University of California, Berkeley, California 94720, USA |
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| Abstract: | We develop a Rayleigh-Ritz variational method for estimating relativistic, multi-particle bound state energies in any (weak-coupling) quantum field theory. A comparison is made with bound state energies derived from the Bethe-Salpeter equation in the Wick-Cutkosky model. Possible applications to QCD are discussed. |
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