通过准周期振荡和自旋粒子动力学探测标量化虫洞
Probing scalarized wormholes through quasi-periodic oscillations and spinning particle dynamics
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中文总结 AI 辅助
该研究在爱因斯坦-标量场理论框架下，通过分析测试粒子（含无自旋与自旋粒子）的动力学，结合准周期振荡（QPO）谱与虫洞喉部粒子碰撞的特征，为区分标量化虫洞与标准黑洞提供了潜在可观测的信号。
中文摘要 AI 辅助
我们在爱因斯坦-标量场理论框架下，研究了三参数标量化虫洞时空中测试粒子的动力学。对于无自旋粒子，我们推导了轨道频率和本轮频率，并利用ER3和ER4共振模型计算了双峰准周期振荡（QPO）谱。标量耦合参数$g_s$将最内稳定圆轨道移至更大半径，并系统性地改变特征3:2共振条件。通过马蒂松-帕帕佩特鲁-迪克森（Mathisson-Papapetrou-Dixon）形式主义扩展至自旋粒子后，我们发现自旋-曲率耦合会显著改变有效势和最内稳定圆轨道参数；物理上可允许的最大自旋随标量耦合单调增加。对虫洞喉部附近粒子碰撞的分析表明，标量耦合和相对自旋取向共同决定碰撞能量学，反平行自旋构型会产生高得多的能量。我们的结果表明，标量耦合与自旋-曲率相互作用的联合效应对QPO频率和碰撞过程留下了独特印记，可能为区分标量化虫洞与标准黑洞提供可观测的特征信号。
英文摘要
We investigate the dynamics of test particles in a three-parameter scalarized wormhole spacetime within Einstein-scalar field theory. For spinless particles, we derive the orbital and epicyclic frequencies and compute twin-peak QPO spectra using the ER3 and ER4 resonance models. The scalar coupling parameter $g_s$ shifts the innermost stable circular orbit to larger radii and systematically modifies the characteristic 3:2 resonance condition. Extending to spinning particles via the Mathisson-Papapetrou-Dixon formalism, we find that spin-curvature coupling significantly alters the effective potential and innermost stable circular orbit parameters. The maximum physically admissible spin increases monotonically with the scalar coupling. Analysis of particle collisions near the wormhole throat reveals that both scalar coupling and relative spin orientation determine collision energetics, with anti-aligned spin configurations producing substantially higher energies. Our results suggest that the combined effects of scalar coupling and spin-curvature interaction leave distinct imprints on QPO frequencies and collision processes, potentially providing observable signatures for distinguishing scalarized wormholes from standard black holes.
