Twin peaks and boomerang in quantum-chaotic systems

ORAL

Abstract

We investigate the build-up of a twin-peak structure in the momentum distribution of a quantum wavepacket launched in a quantum-chaotic system. While this phenomenon has been originally associated with the Anderson localization in a disordered potential landscape, our study reveals that it is a more common feature of quantum chaos. In particular, we have put forward a general theoretical framework for the twin peaks as the combined effects of system boundedness and chaos, even emerging in the absence of the time-reversal symmetry. Furthermore, we show that the quantum boomerang is the real-space sibling of the twin peaks in the momentum space.

* J.K.-R. thanks the Emil Aaltonen Foundation, the Vaisala Foudation and the Oskar Huttunen Foundation for financial support. A.M.G. thanks the Harvard Quantum Initiative for financial support.

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Publication: J. Keski-Rahkonen, A. Aydin, and E. J. Heller, Twin Peaks in Bounded Quantum-Chaotic Systems (In preparation)

Presenters

  • Joonas Keski-Rahkonen

    Harvard University

Authors

  • Joonas Keski-Rahkonen

    Harvard University

  • Alhun Aydin

    Sabanci University

  • Eric J Heller

    Department of Physics, Harvard University, Harvard University, Cambridge, MA 02138, USA, Harvard University