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arXiv math-ph/0101027math-phcs.NAmath.MPmath.NAquant-ph
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虚三次谐振子及其在x和p表示中的方阱近似

Imaginary cubic oscillator and its square-well approximations in x- and p-representation

Miloslav Znojil

AI总结:

本文通过坐标和动量表示中的数值离散化方法研究具有虚PT对称势V(x)=i x^3的薛定谔方程,证实模型产生无限多个具有实能量的束缚态,并推荐和讨论了动量表示中三阶微分方程的方阱可解近似。

摘要:

使用坐标和动量表示中的数值离散化方法研究了具有虚PT对称势$V(x)=i x^3$的薛定谔方程。在前一种情况下,我们的结果证实该模型产生无限多个具有实能量的束缚态。在后一种情况下,微分方程是三阶的,推荐并讨论了动能的可解方阱近似。发现在强耦合极限下,精确的PT对称解收敛到其厄米前身。

英文摘要:

Schroedinger equation with imaginary PT-symmetric potential $V^{}(x) = i\,x^3$ is studied using the numerical discretization methods in both the coordinate and momentum representations. In the former case our results confirm that the model generates an infinite number of bound states with real energies. In the latter case the differential equation is of the third order and a square-well, solvable approximation of kinetic energy is recommended and discussed. One finds that in the strong-coupling limit, the exact PT-symmetric solutions converge to their Hermitian predecessors.

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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