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arXiv 1105.0891cond-mat.mes-hallmath-phmath.MPquant-ph
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石墨烯量子点和环中的零能态

Zero-energy states in graphene quantum dots and rings

C. A. Downing, D. A. Stone, M. E. Portnoi

摘要:

我们提出了精确的零能量解析解一类光滑衰减的潜力,表明完全限制的载流子在石墨烯量子点和环的静电势确实是可能的,而不求助于磁场。这些精确的解决方案,使我们能够得出结论的潜力,以支持完全受限的国家,包括潜在的强度和空间范围的临界值的一般要求。

英文摘要:

We present exact analytical zero-energy solutions for a class of smooth decaying potentials, showing that the full confinement of charge carriers in electrostatic potentials in graphene quantum dots and rings is indeed possible without recourse to magnetic fields. These exact solutions allow us to draw conclusions on the general requirements for the potential to support fully confined states, including a critical value of the potential strength and spatial extent.

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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