Berlin 2005 – wissenschaftliches Programm

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DY: Dynamik und Statistische Physik

DY 13: Quantum Chaos

DY 13.4: Vortrag

Freitag, 4. März 2005, 15:00–15:15, TU H2032

A super-Ohmic energy absorption in driven quantum chaotic systems — •Alexander Ossipov¹, Denis Basko², and Vladimir Kravtsov^1,3 — ¹The Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, 34014 Trieste, Italy — ²Physics Department, Princeton University, NJ 08450, USA — ³Landau Institute for Theoretical Physics, 2 Kosygina Street, 117940 Moscow, Russia

We consider energy absorption by driven chaotic systems of the symplectic symmetry class. According to our analytical perturbative calculation, at the initial stage of evolution the energy growth with time can be faster than linear. This appears to be an analog of weak anti-localization in disordered systems with spin-orbit interaction. Our analytical result is also confirmed by numerical calculations for the symplectic quantum kicked rotor.