Hydrodynamic limit for the spin dynamics of the Heisenberg chain from quantum Monte Carlo calculations

Simon Grossjohann; Wolfram Brenig

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Hydrodynamic limit for the spin dynamics of the Heisenberg chain from quantum Monte Carlo calculations

机译：海森堡链自旋动力学的流体力学极限（基于量子蒙特卡洛计算）

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We show that quantum Monte Carlo calculations of the dynamic structure factor of the isotropic-spin-1/2 antiferromagnetic chain at intermediate temperatures corroborate a picture of diffusive spin dynamics at finite frequencies in the low-energy long-wavelength limit and are in good agreement with recent predictions for this by Sirker et al..

机译：我们表明，在中等温度下各向同性自旋1/2反铁磁链的动力学结构因子的量子蒙特卡罗计算，证实了在低能量长波长范围内在有限频率处的扩散自旋动力学的图片，并且相吻合Sirker等人最近对此的预测。

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来源
《Physical review》 |2010年第1期|012404.1-012404.4|共4页
作者
Simon Grossjohann; Wolfram Brenig;
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作者单位

Institut fuer Theoretische Physik, Technische Universitaet Braunschweig, 38106 Braunschweig, Germany;

Institut fuer Theoretische Physik, Technische Universitaet Braunschweig, 38106 Braunschweig, Germany;

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正文语种 eng
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theory of electronic transport; scattering mechanisms; quantum transport; monte carlo methods; dynamic properties (dynamic susceptibility, spin waves, spin diffusion, dynamic scaling, etc.);

机译：电子运输理论;散射机制量子传输蒙特卡洛方法动态特性（动态磁化率;自旋波;自旋扩散;动态缩放等）;

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Hydrodynamic limit for the spin dynamics of the Heisenberg chain from quantum Monte Carlo calculations

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