Speaker:
David Damanik
Institution:
Rice University
Time:
Thursday, February 8, 2007 - 2:00pm
Location:
MSTB 254
We discuss the spreading of an initially localized wavepacket
on the Fibonacci chain under Schr\"odinger dynamics. After briefly
recalling the known results that bound the associated dynamical
quantities from above and below, we present a combinatorial approach to
this problem that leads to improved lower bounds (joint work with Mark
Embree and Serguei Tcheremchantsev)