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arXiv · 2108.00685

Near-frozen non-equilibrium state at high energy in an integrable system

Stefan G. Fischer·Yigal Meir·Yuval Gefen·Bernd Rosenow
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Abstract

Ergodic many-body systems are expected to reach quasi-thermal equilibrium. Here we demonstrate that, surprisingly, high-energy electrons, which are injected into a quantum Hall edge mode with finite range interactions, stabilize at a far-from-thermalized state over a long time scale. To detect this non-equilibrium state, one positions an energy-resolved detector downstream of the point of injection. So far, non-equilibrium distributions in integrable systems were either found not to display relaxation at all, or generically relax to near-thermal asymptotic states. In stark contrast, the here-obtained many-body state comprises fast-decaying transient components, followed by a nearly frozen distribution with a peak near the injection energy.

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Stefan G. Fischer, Yigal Meir, Yuval Gefen, Bernd Rosenow. 2021-08-02. Near-frozen non-equilibrium state at high energy in an integrable system. https://arxiv.org/abs/2108.00685

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