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Machine learning spatial geometry from entanglement features

机译:从纠缠特征机器学习空间几何

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摘要

Motivated by the close relations of the renormalization group with both the holography duality and the deep learning, we propose that the holographic geometry can emerge from deep learning the entanglement feature of a quantum many-body state. We develop a concrete algorithm, call the entanglement feature learning (EFL), based on the random tensor network (RTN) model for the tensor network holography. We show that each RTN can be mapped to a Boltzmann machine, trained by the entanglement entropies over all subregions of a given quantum many-body state. The goal is to construct the optimal RTN that best reproduce the entanglement feature. The RTN geometry can then be interpreted as the emergent holographic geometry. We demonstrate the EFL algorithm on a 1D free fermion system and observe the emergence of the hyperbolic geometry (AdS_3 spatial geometry) as we tune the fermion system towards the gapless critical point (CFT_2 point).
机译:归因于归一化组与全息对偶性和深度学习的紧密关系,我们提出全息几何可以从深度学习中显现出量子多体态的纠缠特征。我们基于张量网络全息的随机张量网络(RTN)模型,开发了一种具体的算法,称为纠缠特征学习(EFL)。我们表明,每个RTN可以映射到一个给定的量子多体态的所有子区域上的纠缠熵训练的Boltzmann机。目的是构建最能重现纠缠特征的最佳RTN。然后可以将RTN几何图形解释为紧急全息图形。我们在一维自由费米子系统上演示了EFL算法,并在朝向无间隙临界点(CFT_2点)调整费米子系统时观察到了双曲线几何(AdS_3空间几何)的出现。

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  • 来源
    《Physical review》 |2018年第4期|045153.1-045153.13|共13页
  • 作者单位

    Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA;

    Department of Physics, Stanford University, California 94305, USA;

    Department of Physics, Stanford University, California 94305, USA;

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