A light-front coupled cluster method

Details A light-front coupled cluster method A light-front coupled cluster method

2011-10-24

arxiv.org/abs/1110.5323v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 1 figure; to appear in the proceedings of LIGHTCONE 2011, 23-27 May 2011, Dallas

Scientific paper

A new method for the nonperturbative solution of quantum field theories is described. The method adapts the exponential-operator technique of the standard many-body coupled-cluster method to the Fock-space eigenvalue problem for light-front Hamiltonians. This leads to an effective eigenvalue problem in the valence Fock sector and a set of nonlinear integral equations for the functions that define the exponential operator. The approach avoids at least some of the difficulties associated with the Fock-space truncation usually used.

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