Holographic dissipation prefers the Landau over the Keldysh form
Holographic dissipation prefers the Landau over the Keldysh form
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DOI：
10.1103/physrevd.107.l121901
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发表时间：
2022-07
影响因子：
5
通讯作者：
Yu-Kun Yan;Shan-Quan Lan;Yu-mei Tian;Pengzhen Yang;Shunhui Yao;Hongbao Zhang
中科院分区：
文献类型：
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作者：
Yu-Kun Yan;Shan-Quan Lan;Yu-mei Tian;Pengzhen Yang;Shunhui Yao;Hongbao Zhang
虽然全息对偶性被认为是帮助理解强耦合多体系统的非平衡动力学的一个补充工具，但如何将其预测定量地与真实的实验场景相比较仍然是一个显著的挑战。通过将全息涡旋动力学与唯象耗散Gross-Pitaeviskii模型相匹配，我们发现全息耗散机制可以用朗道形式而不是Keldysh形式很好地捕捉，尽管后者在数值模拟中的应用要广泛得多。我们的发现有望为促进全息预测对即将到来的实验数据的定量测试开辟新的途径。我们的结果也提供了一个很好的例子，全息对偶性可以帮助选择适当的唯象模型来描述远离平衡的非线性动力学超越流体动力学制度。
Although holographic duality has been regarded as a complementary tool in helping understand the non-equilibrium dynamics of strongly coupled many-body systems, it still remains a remarkable challenge how to confront its predictions quantitatively with the real experimental scenarios. By matching the holographic vortex dynamics with the phenomenological dissipative Gross-Pitaeviskii models, we find that the holographic dissipation mechanism can be well captured by the Landau form rather than the Keldysh one, although the latter is much more widely used in numerical simulations. Our finding is expected to open up novel avenues for facilitating the quantitative test of the holographic predictions against the upcoming experimental data. Our result also provides a prime example how holographic duality can help select proper phenomenological models to describe far-from-equilibrium nonlinear dynamics beyond the hydrodynamic regime.