Time Crystals: New States of Matter - Frank Wilczek
On the 24th of May 2017 at Uppsala University Frank Wilczek (Professor of Physics at MIT and winner of the Nobel Prize in Physics 2004) spoke at the Department of Astronomy & Physics on the theme "time crystals".
Symmetry, and the spontaneous breaking of symmetry, are dominant themes in modern physics. Time translation is perhaps the most fundamental of symmetries, and the question of its breaking raises new conceptual issues. From this ferment, one imagines new states of matter, the so-called "time crystals." First proposed theoretically, they have been recently seen by experimenters. Dr. Wilczek reviewed these developments, and discussed future prospects.