  We study the heavy quarkonium within the basis light-front quantization
approach. We implement the one-gluon exchange interaction and a confining
potential inspired by light-front holography. We adopt the holographic
light-front wavefunction (LFWF) as our basis function and solve the
non-perturbative dynamics by diagonalizing the Hamiltonian matrix. We obtain
the mass spectrum for charmonium and bottomonium. With the obtained LFWFs, we
also compute the decay constants and the charge form factors for selected
eigenstates. The results are compared with the experimental measurements and
with other established methods.
