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arXiv 0709.3605hep-th
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Hermitian和非Hermitian Hamilton的相互作用

Interactions of Hermitian and non-Hermitian Hamiltonians

Carl M. Bender, Hugh F. Jones

摘要:

耦合的非厄米的PT-对称哈密顿标准厄米哈密顿,其中每个人都有一个真正的能量谱,探索通过一些可溶性模型。发现在所有情况下,能量对于小的耦合常数值保持实数,但是当耦合变得比某个临界值强时,能量变得复数。对于一个二次非厄米PT对称哈密顿量耦合到一个任意实厄米PT对称哈密顿量,在足够小的耦合常数下,基态能量的真实性在微扰论中被建立到二阶.

英文摘要:

The coupling of non-Hermitian PT-symmetric Hamiltonians to standard Hermitian Hamiltonians, each of which individually has a real energy spectrum, is explored by means of a number of soluble models. It is found that in all cases the energy remains real for small values of the coupling constant, but becomes complex if the coupling becomes stronger than some critical value. For a quadratic non-Hermitian PT-symmetric Hamiltonian coupled to an arbitrary real Hermitian PT-symmetric Hamiltonian, the reality of the ground-state energy for small enough coupling constant is established up to second order in perturbation theory.

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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