First experimental evidence for quantum echoes in scattering systems

Details First experimental evidence for quantum echoes in scattering systems First experimental evidence for quantum echoes in scattering systems

2004-08-26

arxiv.org/abs/nlin/0408046v1

Phys. Rev. Lett. 93, 134102 (2004)

Nonlinear Sciences

Chaotic Dynamics

RevTex 4.0, 5 eps-figures

Scientific paper

10.1103/PhysRevLett.93.134102

A self-pulsing effect termed quantum echoes has been observed in experiments with an open superconducting and a normal conducting microwave billiard whose geometry provides soft chaos, i.e. a mixed phase space portrait with a large stable island. For such systems a periodic response to an incoming pulse has been predicted. Its period has been associated to the degree of development of a horseshoe describing the topology of the classical dynamics. The experiments confirm this picture and reveal the topological information.

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