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arXiv 2104.00149math-phgr-qcmath.CAmath.MP
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薛定谔-牛顿-胡克系统在更高的维度。第一部分:Stationary states

Schrödinger-Newton-Hooke system in higher dimensions. Part I: Stationary states

Filip Ficek

摘要:

带有调和势的薛定谔方程耦合到泊松方程,称为薛定谔-牛顿-胡克(SNH)系统,已经在各种物理背景下被考虑,从量子力学到广义相对论。SNH系统描述了具有负宇宙学常数的爱因斯坦质量标量系统的非相对论极限,这一事实直接激发了我们的工作。在本文中,我们开始的调查,旨在了解解决方案的SNH系统的能量超临界空间维度$d\geq 7$,在那里我们希望观察到有趣的短波长行为,由于限制波的捕获潜力。在这里,我们研究定态解,并证明非线性基态和激发态的单参数族的存在性。基态的频率作为中心密度的函数示出在尺寸$7\leq d\leq 15$和$d\geq 16$中表现出不同的定性行为,这预计会影响这些尺寸中的基态的稳定性。我们的结果承担许多相似之处,类似的问题,已被研究的Gross-Pitaevskii方程。

英文摘要:

The Schrödinger equation with a harmonic potential coupled to the Poisson equation, called the Schrödinger-Newton-Hooke (SNH) system, has been considered in a variety of physical contexts, ranging from quantum mechanics to general relativity. Our work is directly motivated by the fact that the SNH system describes the nonrelativistic limit of the Einstein-massive-scalar system with negative cosmological constant. With this paper we begin the investigations aiming at understanding solutions of the SNH system in the energy supercritical spatial dimensions $d\geq 7$, where we expect to observe interesting short wavelength behaviours due to the confinement of waves by the trapping potential. Here we study stationary solutions and prove existence of one-parameter families of nonlinear ground and excited states. The frequency of the ground state as the function of the central density is shown to exhibit different qualitative behaviours in dimensions $7\leq d\leq 15$ and $d\geq 16$, which is expected to affect the stability properties of the ground states in these dimensions. Our results bear many similarities to the analogous problem that has been studied for the Gross-Pitaevskii equation.

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