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arXiv 1705.03426math-phhep-thmath.MP
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具有平衡损失和增益的PT -对称有理Calogero模型

PT -symmetric rational Calogero model with balanced loss and gain

Debdeep Sinha, Pijush K. Ghosh

摘要:

研究了具有平衡增益和损失的两体有理Calogero模型。该系统产生的哈密顿量是对称的宇称(P)和时间反演(T)对称性的组合操作。结果表明,该系统是可积的和精确的,稳定的经典解的参数的特定范围内获得。相应的量子系统承认束缚态解的参数范围完全相同的经典解决方案是稳定的。给出了系统的本征谱,并讨论了适当的Stokes楔中波函数的归一化问题。最后,经典地研究了具有平衡损耗和增益的Calogero模型,当成对谐波相互作用项被一个共同的限制谐波势所取代时。该系统承认稳定的解决方案,为特定范围的参数。然而,可积性和/或精确的可解性的系统是模糊的,由于存在的损失和增益项。得到了摄动解,并与数值结果进行了比较。

英文摘要:

A two body rational Calogero model with balanced loss and gain is investigated. The system yields a Hamiltonian which is symmetric under the combined operation of parity (P) and time reversal (T ) symmetry. It is shown that the system is integrable and exact, stable classical solutions are obtained for particular ranges of the parameters. The corresponding quantum system admits bound state solutions for exactly the same ranges of the parameters for which the classical solutions are stable. The eigen spectra of the system is presented with a discussion on the normalization of the wave functions in proper Stokes wedges. Finally, the Calogero model with balanced loss and gain is studied classically, when the pair-wise harmonic interaction term is replaced by a common confining harmonic potential. The system admits stable solutions for particular ranges of the parameters. However, the integrability and/or exact solvability of the system is obscure due to the presence of the loss and gain terms. The perturbative solutions are obtained and are compared with the numerical results.

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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