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arXiv 2107.00519hep-thcond-mat.str-el
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全息电荷密度波态中的流体动力学磁输运

Hydrodynamic magneto-transport in holographic charge density wave states

Andrea Amoretti, Daniel Arean, Daniel K. Brattan, Luca Martinoia

AI总结:

通过流体动力学与规范/引力对偶研究平移对称性(伪)自发破缺相中的磁输运,推导出输运系数解析式并验证了全息模型作为磁声子研究的有效代表。

摘要:

我们利用流体动力学和规范/引力对偶来研究在(伪)自发破缺平移对称性的物质相中的磁输运。首先,我们提供了在非零晶格压力和磁场下平移对称性被均匀破缺的系统的流体动力学描述。这使我们能够确定所有相关输运系数的解析表达式。接下来,我们构建了这些相的规范/引力模型,并根据对偶黑洞几何确定了所有直流电导率。结合流体动力学和规范/引力描述,我们获得了交流热电关联函数的解析表达式。这些表达式由黑洞几何和一个我们通过数值确定的钉扎频率固定。我们发现我们的流体动力学和规范/引力描述之间高度一致,并表明规范/引力模型是研究磁声子的良好代表。

英文摘要:

We employ hydrodynamics and gauge/gravity to study magneto-transport in phases of matter where translations are broken (pseudo-)spontaneously. First we provide a hydrodynamic description of systems where translations are broken homogeneously at nonzero lattice pressure and magnetic field. This allows us to determine analytic expressions for all the relevant transport coefficients. Next we construct holographic models of those phases and determine all the DC conductivities in terms of the dual black hole geometry. Combining the hydrodynamic and holographic descriptions we obtain analytic expression for the AC thermo-electric correlators. These are fixed in terms of the black hole geometry and a pinning frequency we determine numerically. We find an excellent agreement between our hydrodynamic and holographic descriptions and show that the holographic models are good avatars for the study of magneto-phonons.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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