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Generation of Bose-Einstein Condensates’ Ground State Through Machine Learning

机译:通过机器学习生成玻色-爱因斯坦凝聚物的基态

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摘要

We show that both single-component and two-component Bose-Einstein condensates’ (BECs) ground states can be simulated by a deep convolutional neural network. We trained the neural network via inputting the parameters in the dimensionless Gross-Pitaevskii equation (GPE) and outputting the ground-state wave function. After the training, the neural network generates ground-state wave functions with high precision. We benchmark the neural network for either inputting different coupling strength in the GPE or inputting an arbitrary potential under the infinite double walls trapping potential, and it is found that the ground state wave function generated by the neural network gives the relative chemical potential error magnitude below 10−3. Furthermore, the neural network trained with random potentials shows prediction ability on other types of potentials. Therefore, the BEC ground states, which are continuous wave functions, can be represented by deep convolutional neural networks.
机译:我们表明,可以通过深度卷积神经网络来模拟单组分和双组分玻色-爱因斯坦凝聚物(BEC)的基态。我们通过在无量纲的Gross-Pitaevskii方程(GPE)中输入参数并输出基态波函数来训练神经网络。训练后,神经网络会生成高精度的基态波函数。我们对神经网络进行了基准测试,以在GPE中输入不同的耦合强度或在无限双壁陷获电势下输入任意电势,发现神经网络生成的基态波函数给出的相对化学势误差幅度低于10 −3 。此外,训练有随机电位的神经网络对其他类型的电位具有预测能力。因此,作为连续波函数的BEC基态可以由深卷积神经网络表示。

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