  The bound state and low-energy scattering properties of two oriented dipoles
are investigated for both bosonic and fermionic symmetries. Interestingly, a
universal scaling emerges for the expectation value of the angular momentum for
deeply-bound two-dipole states. This scaling traces to the pendulum motion of
two dipoles in strong dipole regime. The low-energy scattering phase shifts of
two dipoles also show universal behavior. These universal observations make
connections to the scaling laws reported in Refs. [1, 2] for three dipoles.
Atomic units are used throughout this work.
