The Microscopic Quantum Theory of Low Temperature Amorphous Solids
The Microscopic Quantum Theory of Low Temperature Amorphous Solids
The quantum excitations in glasses have long presented a set of puzzles for condensed matter physicists. A common view is that they are largely disordered analogs of elementary excitations in crystals, supplemented by two level systems which are chemically local entities coming from disorder. A radical revision of this picture …