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arXiv · 1110.5323

A light-front coupled cluster method

J. R. Hiller·S. S. Chabysheva
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Abstract

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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J. R. Hiller, S. S. Chabysheva. 2011-10-24. A light-front coupled cluster method. https://doi.org/10.1007/s00601-011-0268-z

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