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Symmetry & Emptiness

In the May 12th issuse of Nature, Nobel prize winner Frank Wilczek has a nice writeup of my father's recent paper in the March 18th Physical Review Letters, "Quantum Opacity, the RHIC HBT Puzzle, and the Chiral Phase Transition"  by John G. Cramer, Gerald A. Miller, Jackson M. S. Wu, Jin-Hee Yoon.

Wilczek begins:

The concept that what we ordinarily perceive as empty space is in fact a complicated medium is a profound and pervasive theme in modern physics. This invisible, inescapable medium allows us to select a unique direction as up, and thereby locally reduces the symmetry of the underlying equations of physics, so cosmic fields in ‘empty’ space lower the symmetry of these fundamental equations everywhere. Or so theory has it. For although this concept of a symmetry-breaking aether has been extremely fruitful (and has been demonstrated indirectly in many ways), the ultimate demonstration of its validity—cleaning out the medium and restoring the pristine symmetry of the equations—has never been achieved: this is, perhaps, until now.

Then he goes on to explain why my dad (& co.)'s paper is so important. (Unfortunately, you need a subscription to Nature to read the rest. I was working from a pdf, retyping. So any typos are mine.)