We study supersymmetric quantum mechanics on RP_{ n},SO(n),G_{ 2} and U(2) to examine Witten's Morse theory concretely. We confirm the simple instanton picture of the de Rham cohomology that has been given in a previous paper. We use a reflection symmetry of each theory to select the true vacuums. The number of selected vacuums agrees with the de Rham cohomology for each of the above manifolds.

Categories: hep-th

de Rham cohomology of SO(n) and some related manifolds by supersymmetric quantum mechanics