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arXiv · 0704.0193

Domain Wall Dynamics near a Quantum Critical Point

Shengjun Yuan·Hans De Raedt·Seiji Miyashita
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Abstract

We study the real-time domain-wall dynamics near a quantum critical point of the one-dimensional anisotropic ferromagnetic spin 1/2 chain. By numerical simulation, we find the domain wall is dynamically stable in the Heisenberg-Ising model. Near the quantum critical point, the width of the domain wall diverges as $(Δ-1) ^{-1/2}$.

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Shengjun Yuan, Hans De Raedt, Seiji Miyashita. 2007-04-02. Domain Wall Dynamics near a Quantum Critical Point. https://doi.org/10.1103/physrevb.75.184305

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