Dynamical tunneling in many-dimensional chaotic systems.
We investigate dynamical tunneling in many-dimensional systems using a quasiperiodically modulated kicked rotor, and find that the tunneling rate from the torus to the chaotic region is drastically enhanced when the chaotic states become delocalized as a result of the Anderson transition. This result strongly suggests that amphibious states, which were discovered for a one-dimensional kicked rotor with transporting islands [L. Hufnagel, Phys. Rev. Lett. 89, 154101 (2002)], quite commonly appear in many-dimensional systems.
Ishikawa
Akiyuki
A
Department of Physics, Tokyo Metropolitan University, Minami-Osawa, Hachioji, Tokyo 192-0397, Japan.
Tanaka
Atushi
A
Shudo
Akira
A