Testing Theories of Gravity in Various Regimes in Cosmology with Gravitational Wave

用引力波检验宇宙学中不同状态下的引力理论

• 批准号: 22K20367
• 负责人: Yingcharoenrat Vicharit
• 金额: $ 1.83万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Research Activity Start-up
• 财政年份: 2022
• 资助国家: 日本
• 起止时间: 2022-08-31 至 2024-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22K20367/
• 关键词: Effective field theory; Regge-Wheeler equation; Magnetogenesis; Modified gravity; Gravitational wave; Dark energy; Inflation; Black hole

1. I have published a paper on "Effective field theory of black hole perturbations with timelike scalar profile: formulation" in JCAP with Prof.Shinji Mukohyama (YITP, Kyoto). The effective theory we formulated provides a general framework in the context of scalar-tensor theories for studying dynamics of black hole perturbations, and can be applied to an arbitrary background geometry.2. I have published a papaer on "Generalized Regge-Wheeler equation from Effective Field Theory of black hole perturbations with a timelike scalar profile" in JCAP with Prof.Shinji Mukohyama and Dr.Kazufumi Takahashi (YITP, Kyoto). We used the effetive theory to study dynamics of odd-parity perturbations and obtained the generalized Regge-Wheeler equation which is a central equation to determine the spectrum of quasinormal modes.3. I have written a paper on "Super-horizon resonant magnetogenesis during inflation" with Prof.Misao Sasaki (IPMU, Tokyo) and Dr.Valeri Vardanyan (IPMU, Tokyo). The paper has been accepted in PRD and will be published soon. We proposed a novel mechanism for generating a primordial magnetic field from inflation in order to explain the observed value of magnetic field on the intergalactic scale. We obtained an allowed region of our parameters for which we can explain the observed value of magnetic field, and also avoid the problems such as the strong coupling and the backreaction problems.

1.我已经在JCAP上发表了一篇论文，题为《具有类时标量轮廓的黑洞微扰的有效场论：公式》。我们建立的有效理论在标量张量理论的背景下为研究黑洞扰动的动力学提供了一个一般的框架，并且可以应用于任意的背景几何。我已经在JCAP上与Mukohyama教授和Kazufumi Takahashi博士(YITP，京都)一起发表了一篇论文《来自具有类时标量轮廓的黑洞有效场扰动的广义Regge-Wheeler方程》。利用有效理论研究了奇宇称微扰的动力学，得到了确定准正规模谱的中心方程--广义Regge-Wheeler方程。我曾与东京IPMU的佐佐木美佐夫教授和东京IPMU的Valeri Vardanyan博士共同撰写了一篇关于“通货膨胀期间的超地平线共振磁发生”的论文。这篇论文已被珠江三角洲接受，并将于短期内出版。我们提出了一种从膨胀产生原始磁场的新机制，以解释星系间尺度上观测到的磁场的值。我们得到了一个参数的允许范围，在这个范围内，我们可以解释磁场的观测值，同时也避免了强耦合和反反应等问题。

项目成果

Generalized Regge-Wheeler equation from Effective Field Theory of black hole perturbations with a timelike scalar profile

具有类时标量剖面的黑洞扰动有效场论的广义雷格-惠勒方程

• DOI: 10.1088/1475-7516/2022/10/050
• 发表时间: 2022
• 期刊: Journal of Cosmology and Astroparticle Physics
• 影响因子: 6.4
• 作者: Mukohyama Shinji;Takahashi Kazufumi;Yingcharoenrat Vicharit
• 通讯作者: Yingcharoenrat Vicharit

Super-horizon resonant magnetogenesis during inflation

暴胀过程中的超地平线共振磁生现象

• DOI: 10.1103/physrevd.107.083517
• 发表时间: 2023
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Sasaki Misao;Vardanyan Valeri;Yingcharoenrat Vicharit
• 通讯作者: Yingcharoenrat Vicharit

Effective Field Theory of Black Hole Perturbations with Timelike Scalar Profile

具有类时标量剖面的黑洞扰动的有效场论

• 发表时间: 2023
• 作者: Belin Alexandre;Myers Robert C.;Ruan Shan-Ming;S?rosi G?bor;Speranza Antony J.;Vicharit Yingcharoenrat;Shan-Ming Ruan;Vicharit Yingcharoenrat
• 通讯作者: Vicharit Yingcharoenrat

Effective field theory of black hole perturbations with timelike scalar profile: formulation

• DOI: 10.1088/1475-7516/2022/09/010
• 发表时间: 2022-04
• 期刊: Journal of Cosmology and Astroparticle Physics
• 影响因子: 6.4
• 作者: S. Mukohyama;Vicharit Yingcharoenrat