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arXiv 1809.05409math-phmath.MP
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相互作用玻色子向Hartree动力学收敛速度的时间依赖性

On the time dependence of the rate of convergence towards Hartree dynamics for interacting Bosons

Jinyeop Lee

摘要:

我们考虑三维空间中相互作用的$N$ -玻色子。已知在平均场区域中的多体薛定谔演化与相应的哈特里动力学之间的差异是$1/N$阶。我们调查的差异的时间依赖性。为了得到次指数界,我们使用了小初始数据的时间衰减估计的结果。我们还使用Eschenhartz估计改进了奇异势的时间相关界。我们考虑了$λ\in\mathbb{R}$、$μ\geq0$和$0<γ<3/2$的$λ\exp(-μ|x|)|x|^{-γ}$型相互作用势$V(x)$,它涵盖了库仑和汤川相互作用。

英文摘要:

We consider interacting $N$-Bosons in three dimensions. It is known that the difference between the many-body Schrödinger evolution in the mean-field regime and the corresponding Hartree dynamics is of order $1/N$. We investigate the time dependence of the difference. To have sub-exponential bound, we use the results of time decay estimate for small initial data. We also refine time dependent bound for singular potential using Strichartz estimate. We consider the interaction potential $V(x)$ of type $λ\exp(-μ|x|)|x|^{-γ}$ for $λ\in\mathbb{R}$, $μ\geq0$, and $0<γ<3/2$, which covers the Coulomb and Yukawa interaction.

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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