SOSpin, a C++ library for Yukawa decomposition in SO ( 2 N ) models
Description
This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018) Abstract We present in this paper the SOSpin library, which calculates an analytic decomposition of the Yukawa interactions invariant under SO (2N) in terms of an SU (N) basis. We make use of the oscillator expansion formalism, where the SO (2N) spinor representations are expressed in terms of creation and annihilation operators of a Grassmann algebra acting on a vacuum state. These noncommutative operators and their products are simulated in SOSpin through the implementation of doubly-l... Title of program: SOSpin Catalogue Id: AEZM_v1_0 Nature of problem The decomposition of an Yukawa interaction invariant under SO(2N) in terms of SU(N) fields. Versions of this program held in the CPC repository in Mendeley Data AEZM_v1_0; SOSpin; 10.1016/j.cpc.2016.01.010