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arXiv 2603.13637gr-qc
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Kerr黑洞背景下由相变引起的长期退相干的解析推导

Analytical derivation of long-term dephasing caused by phase transitions in the context of Kerr black holes

Faculty of Physics, Lomonosov Moscow State University(莫斯科国立大学物理系);International School, I.M. Sechenov First Moscow State Medical University(伊万·谢切诺夫第一莫斯科国立医科大学国际学院)

Jingxu Wu, Liangyu Luo, Jie Shi

AI总结:

本文通过解析方法研究了中子星绕超大质量Kerr黑洞轨道上因一阶量子色动力学相变引起的引力波信号长期退相干,推导了退相干的严格解析标度律。

摘要:

极端质量比激励(EMRIs)是未来空间引力波天文台如LISA的主要目标。本文分析了在中子星绕超大质量Kerr黑洞轨道上,由一阶量子色动力学(QCD)相变引起的引力波信号长期相位偏移(退相干)。通过建模从有核相到夸克核心相的转变,我们量化了次级物体的潮汐变形性(Λ)的突然变化。利用Teukolsky形式化和后牛顿展开,我们推导了累积退相干的严格解析标度律。我们证明Kerr自旋参数a和临界相变轨道速度v_c显著放大了退相干效应。我们的解析框架提供了一种稳健工具,利用引力波天文学探测高质子密度下的非微扰QCD方程。

英文摘要:

Extreme Mass Ratio Inspirals (EMRIs) constitute a prime target for future space-based gravitational-wave observatories such as LISA. In this paper, we analytically investigate the long-term phase shift (dephasing) in the gravitational wave signal induced by a first-order quantum chromodynamics (QCD) phase transition within a neutron star orbiting a supermassive Kerr black hole. By modeling the transition from a hadronic phase to a quark core phase, we quantify the sudden change in the tidal deformability ($Λ$) of the secondary object. Utilizing the Teukolsky formalism and Post-Newtonian expansions, we derive a strict analytical scaling law for the accumulated dephasing. We demonstrate that the Kerr spin parameter $a$ and the critical phase transition orbital velocity $v_c$ significantly amplify the dephasing effect. Our analytical framework provides a robust tool for probing the non-perturbative QCD equation of state at high baryon densities using gravitational wave astronomy.

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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