We present our preliminary results of SO(2N) gauge theories, approaching the
large-N limit. SO(2N) theories may help us to understand QCD at finite chemical
potential since there is an orbifold equivalence between SO(2N) and SU(N) gauge
theories at large-N and SO(2N) theories do not have the sign problem present in
QCD. We consider the string tensions, mass spectra, and deconfinement
temperatures in the SO(2N) pure gauge theories in 2+1 dimensions, comparing
them to their corresponding SU(N) theories.Comment: 7 pages, 6 figures, presented at the 31st International Symposium on
Lattice Field Theory (Lattice 2013), 29 July - 3 August 2013, Mainz, German