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arXiv · 1208.2800

Dynamical Singularities of Glassy Systems in a Quantum Quench

Tomoyuki Obuchi·Kazutaka Takahashi
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Abstract

We present a prototype of behavior of glassy systems driven by quantum dynamics in a quenching protocol by analyzing the random energy model in a transverse field. We calculate several types of dynamical quantum amplitude and find a freezing transition at some critical time. The behavior is understood by the partition-function zeros in the complex temperature plane. We discuss the properties of the freezing phase as a dynamical chaotic phase, which are contrasted to those of the spin-glass phase in the static system.

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BibTeXRIS

Tomoyuki Obuchi, Kazutaka Takahashi. 2012-12-13. Dynamical Singularities of Glassy Systems in a Quantum Quench. https://doi.org/10.1103/physreve.86.051125

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