I dont think they will ever find a monopole because in a phonon the wave propogates inwards, and a photon the wave propagates outwards
so a phonon is to the magnetic current as a, photon is to the electric voltage, can you verify this Bart?
then a monopole wont exist because a phonon has a north and south, just like a photon has a negitive and positive
just like a electron has a inner magnetic positive field with and outer electric negitive field...
A electron is not monopolar so we know that the it must have both a north and south pole, based more on its
spin...
Thanks & Cheers
MARX