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arXiv 1003.3738quant-phhep-latmath-phmath.MP
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强耦合区非厄米量子图的反常实谱

Anomalous real spectra of non-Hermitian quantum graphs in strong-coupling regime

Miloslav Znojil

摘要:

具有实谱的玩具量子哈密顿量$H\neq H^\dagger$被认为是生活在图$\mathbb{G}$上,该图在微观基本长度尺度上仅与标准实数线$\mathbb{R}$局部不同。在非平凡度量的意义下,假设了“隐厄米性”性质$H= H^\ddagger$.我们的能量计算(基于离散化的$\mathbb{G}$)表明,非平凡的拓扑图可能是负责某些非微扰功能的能量。

英文摘要:

Toy quantum Hamiltonians $H\neq H^\dagger$ with real spectra are considered as living on graphs $\mathbb{G}$ which only differ from the standard real line $\mathbb{R}$ locally, on a microscopic fundamental-length scale. In terms of a nontrivial metric the "hidden Hermiticity" property $H= H^\ddagger$ is postulated. Our calculations of the energies (based on a discretization of $\mathbb{G}$) indicate that the nontriviality of the topology of the graph may be responsible for certain nonperturbative features of the energies.

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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