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arXiv 1403.4239quant-ph
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具有时空对称性的非厄米哈密顿算符的本征值

On the eigenvalues of some non-Hermitian Hamiltonians with space-time symmetry

Paolo Amore, Francisco M. Fernández, Javier Garcia

摘要:

本文利用伪谱方法和在适当的基组上对哈密顿矩阵直接对角化的方法,计算了一些二维非厄米哈密顿算子的特征值。这两套结果同意非常好,但有很大的不同,从本征值前一段时间由其他作者。特别是,我们没有观察到多个相变声称发生在一个非谐振子。

英文摘要:

We calculate the eigenvalues of some two-dimensional non-Hermitian Hamiltonians by means of a pseudospectral method and straightforward diagonalization of the Hamiltonian matrix in a suitable basis set. Both sets of results agree remarkably well but differ considerably from the eigenvalues obtained some time ago by other authors. In particular, we do not observe the multiple phase transitions claimed to occur in one of the anharmonic oscillators.

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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