Friedel oscillations in microwave billiards.
Friedel oscillations of electron densities near step edges have an analog in microwave billiards. A random plane-wave model, normally only appropriate for the eigenfunctions of a purely chaotic system, can be applied and is tested for non-purely-chaotic dynamical systems with measurements on pseudointegrable and mixed dynamics geometries. It is found that the oscillations in the pseudointegrable microwave cavity match the random plane-wave modeling. Separating the chaotic from the regular states for the mixed system requires incorporating an appropriate phase-space projection into the modeling in multiple ways for good agreement with experiment.
Bäcker
A
A
Institut für Theoretische Physik, Technische Universität Dresden, Dresden, Germany.
Dietz
B
B
Friedrich
T
T
Miski-Oglu
M
M
Richter
A
A
Schäfer
F
F
Tomsovic
S
S
D000465:Algorithms; D004583:Electrons; D005716:Game Theory; D008872:Microwaves; D015233:Models, Statistical; D017711:Nonlinear Dynamics; D009991:Oscillometry / Q000379:methods*; D010825:Physics / Q000379:methods*