According to MIT, an experiment has been successful proving the “non-Abelian Aharonov-Bohm Effect”. This means that the phase shift for a particle depends on the order in which (at least two) modifications of the particle wave have been performed. The Aharonov-Bohm effect has been investigated intensively by Myron Evans in the earlier days of ECE theory. The MIT result is brought into connection with geometrical phase effects, for example the Berry phase of photons. See for example UFT papers 8, 27, 147, 336. Application in quantum computers is reported to be possible.