The Hamiltonian that describes the interaction of a static spin-1/2 particle with an external magnetic field, B, is given by H = -μ.B, where the magnetic moment operator, μ, is related to the spin operator, s, by μ = γs with γ the gyromagnetic ratio. Use the Pauli representation of the spin vector s to find the energy eigenvalues in a static uniform magnetic field in the z-direction, B0 = (0, 0, B0).