TY - JOUR
T1 - Fidelity decay for local perturbations
T2 - microwave evidence for oscillating decay exponents
AU - Köber, Bernd
AU - Kuhl, Ulrich
AU - Stöckmann, Hans Jürgen
AU - Goussev, Arseni
AU - Richter, Klaus
PY - 2011/1/31
Y1 - 2011/1/31
N2 - We study fidelity decay in classically chaotic microwave billiards for a local, pistonlike boundary perturbation. We experimentally verify a predicted nonmonotonic crossover from the Fermi golden rule to the escape-rate regime of the Loschmidt echo decay with increasing local boundary perturbation. In particular, we observe pronounced oscillations of the decay rate as a function of the piston position which quantitatively agree with corresponding theoretical results based on a refined semiclassical approach for local boundary perturbations.
AB - We study fidelity decay in classically chaotic microwave billiards for a local, pistonlike boundary perturbation. We experimentally verify a predicted nonmonotonic crossover from the Fermi golden rule to the escape-rate regime of the Loschmidt echo decay with increasing local boundary perturbation. In particular, we observe pronounced oscillations of the decay rate as a function of the piston position which quantitatively agree with corresponding theoretical results based on a refined semiclassical approach for local boundary perturbations.
UR - http://www.scopus.com/inward/record.url?scp=79951694211&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.83.016214
DO - 10.1103/PhysRevE.83.016214
M3 - Article
AN - SCOPUS:79951694211
SN - 1539-3755
VL - 83
JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
IS - 1
M1 - 016214
ER -