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arXiv · 1802.09229

Experimental observation of time singularity in classical-to-quantum chaos transition

Clément Hainaut·Ping Fang·Adam Rançon·Jean-François Clément·Pascal Szriftgiser·Jean Claude Garreau·Chushun Tian·Radu Chicireanu
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Abstract

The emergence of chaotic phenomena in a quantum system has long been an elusive subject. Experimental progresses in this subject have become urgently needed in recent years, when considerable theoretical studies have unveiled the vital roles of chaos in a broad range of topics in quantum physics. Here, we report the first experimental observation of time singularity, that signals a classical-to-quantum chaos transition and finds its origin in the {\it sudden change} in system's memory behaviors. The time singularity observed is an analog of the "dynamical quantum phase transition" (DQPT) -- proposed very recently for regular systems -- in chaotic systems, but with totally different physical origin.

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Clément Hainaut, Ping Fang, Adam Rançon, Jean-François Clément, Pascal Szriftgiser, Jean Claude Garreau, Chushun Tian, Radu Chicireanu. 2018-02-26. Experimental observation of time singularity in classical-to-quantum chaos transition. https://doi.org/10.1103/physrevlett.121.134101

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