自发辐射对tanh模型的影响

IF 4.6 2区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Chinese Journal of Physics Pub Date : 2025-07-22 DOI:10.1016/j.cjph.2025.07.013

A.D. Kammogne

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引用次数: 0

摘要

本研究探讨了自发辐射如何影响tanh模型。通过增加虚分量和移动模型，使其成为非厄米效应。这导致在种群进化过程中出现光束，主要受耦合强度和位移的影响。确定了在实际能量图中识别允许区域和禁止区域的条件。我们还研究了扫描速度和时间对能量虚部的影响。此外，我们还展示了我们的模型与Rabi和Landau-Zener模型之间的相似之处。在整个工作过程中，我们证实了我们的理论预测与数值模拟非常吻合。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Effect of spontaneous emission on a tanh model

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Effect of spontaneous emission on a tanh model

This study investigates how spontaneous emission affects a tanh model. The impact is characterized by adding an imaginary component and shifting the model, which makes it non-Hermitian. This results in the appearance of light beams during population evolution, mainly influenced by the coupling strength and the shift. We determine the conditions for identifying allowed and forbidden regions in the real energy diagram. We also examine how sweep velocity and time influence the imaginary part of the energy. Additionally, we show the similarities between our model and the Rabi and Landau–Zener models. Throughout the work, we confirm that our theoretical predictions match well with numerical simulations.

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来源期刊

Chinese Journal of Physics 物理-物理：综合

CiteScore

8.50

自引率

10.00%

发文量

361

审稿时长

44 days

期刊介绍： The Chinese Journal of Physics publishes important advances in various branches in physics, including statistical and biophysical physics, condensed matter physics, atomic/molecular physics, optics, particle physics and nuclear physics. The editors welcome manuscripts on: -General Physics: Statistical and Quantum Mechanics, etc.- Gravitation and Astrophysics- Elementary Particles and Fields- Nuclear Physics- Atomic, Molecular, and Optical Physics- Quantum Information and Quantum Computation- Fluid Dynamics, Nonlinear Dynamics, Chaos, and Complex Networks- Plasma and Beam Physics- Condensed Matter: Structure, etc.- Condensed Matter: Electronic Properties, etc.- Polymer, Soft Matter, Biological, and Interdisciplinary Physics. CJP publishes regular research papers, feature articles and review papers.