Free For All For Particle Physics Journals?

There's a movement to make all journals publishing particle/high energy physics papers to be open accessed.

The issue surrounding this isn't as trivial as it might appear, as one can read in the article itself. While such an aim might be feasible for high energy physics, it is still an open question if it can be done with other fields, such as condensed matter which produces probably the largest percentage of published papers. There aren't a lot of "large groups" in condensed matter, and most research work are done by small groups with small budgets.

Zz.