Bibliography Sketch

Education:

Teaching

Feynman Physics (3) (For undergraduate students) (from 2023 to now)

Theoretical Topics in Particle Cosmology (from 2022 to now)

Research

I work on theoretical particle physics, cosmology, and astrophysics. My recent interests include cosmological collider physics, quantum field theory and amplitude techniques in de Sitter space, gravitational wave (GW) astronomy, and new physics from early-universe cosmology and astrophysical systems.

Selected Publications

1、Bingchu Fan, Zhong-Zhi Xianyu, “Cosmological Amplitudes in Power-Law FRW Universe,” arXiv: 2403.07050 [hep-th].

2、Zhong-Zhi Xianyu, Jiaju Zang, “Inflation Correlators with Multiple Massive Exchanges,” JHEP 03 (2024) 070 [arXiv: 2309.10849 [hep-th]].

3、Zhehan Qin, Zhong-Zhi Xianyu, “Nonanalyticity and On-Shell Factorization of Inflation Correlators at All Loop Orders,” JHEP 01 (2024) 168 [arXiv: 2308.14802 [hep-th]].

4、Zhehan Qin, Zhong-Zhi Xianyu, “Inflation Correlators at the One-Loop Order: Nonanalyticity, Factorization, Cutting Rule, and OPE,” JHEP 09 (2023) 116 [arXiv: 2304.13295 [hep-th]].

5、Zhehan Qin, Zhong-Zhi Xianyu, “Closed-Form Formulae for Inflation Correlators,” JHEP 07 (2023) 001 [arXiv:2301.07047 [hep-th]].

6、Zhong-Zhi Xianyu, Hongyu Zhang, “Bootstrapping One-Loop Inflation Correlators with the Spectral Decomposition,” JHEP 04 (2023) 103 [arXiv: 2211.03810 [hep-th]].

7、Zhehan Qin, Zhong-Zhi Xianyu, “Helical Inflation Correlators: Partial Mellin-Barnes and Bootstrap Equations,” JHEP 04 (2023) 059 [arXiv: 2208.13790 [hep-th]].

8、Zhehan Qin, Zhong-Zhi Xianyu, “Phase Information in Cosmological Collider Signals,” JHEP 10 (2022) 192 [arXiv:2205.01692 [hep-th]].

9、Matthew Reece, Lian-Tao Wang, Zhong-Zhi Xianyu, “Large-Field Inflation and the Cosmological Collider,” Phys. Rev. D 107 (2023) L101304 [arXiv:2204.11869 [hep-ph]].

10、Xi Tong, Zhong-Zhi Xianyu, “Large Spin-2 Signals at the Cosmological Collider,” JHEP 10(2022) 194 [arXiv:2203.06349 [hep-ph]].

11、Yanou Cui, Zhong-Zhi Xianyu, “Probing Leptogenesis with the Cosmological Collider,” Phys. Rev. Lett. 129 (2022) 111301 [arXiv:2112.10793 [hep-ph]].

12、Lian-Tao Wang, Zhong-Zhi Xianyu, Yi-Ming Zhong, “Precision Calculation of Inflation Correlators at One Loop,” JHEP 02 (2022) 085 [arXiv:2109.14635 [hep-ph]].

13、Qianshu Lu, Matthew Reece, Zhong-Zhi Xianyu, “Missing Scalars at the Cosmological Collider,” JHEP 12 (2021) 098 [arXiv:2108.11385 [hep-ph]].

14、Boye Su, Zhong-Zhi Xianyu, Xingyu Zhang, “Probing Ultralight Bosons with Compact Eccentric Binaries,” Astrophys. J. 923 (2021) 114 [arXiv:2107.13527 [gr-qc]].

15、Lisa Randall, Alexandra Shelest, Zhong-Zhi Xianyu, “An Efficient Signal to Noise Approximation for Eccentric Inspiraling Binaries,” Astrophys.J. 924 (2022) 102[arXiv:2103.16030 [astro-ph.HE]].

16、JiJi Fan, Zhong-Zhi Xianyu, “A Cosmic Microscope for the Preheating Era,” JHEP 01 (2021) 021, [arXiv:2005.12278 [hep-ph]].

17、Lian-Tao Wang, Zhong-Zhi Xianyu, “Gauge Boson Signals at the Cosmological Collider,” JHEP 11 (2020) 082, [arXiv:2004.02887 [hep-ph]].

18、Lian-Tao Wang, Zhong-Zhi Xianyu, “In Search of Large Signals at the Cosmological Collider,” JHEP 2002 (2020) 044 [arXiv:1910.12876 [hep-ph]].

19、Tao Liu, Xi Tong, Yi Wang, Zhong-Zhi Xianyu, “Probing P and CP Violations on the Cosmological Collider,” JHEP 2004 (2020) 189 [arXiv:1909.01819 [hep-ph]].

20、Shiyun Lu, Yi Wang, Zhong-Zhi Xianyu, “A Cosmological Higgs Collider,” JHEP 2002 (2020) 011 [arXiv:1907.07390 [hep-th]].

21、Lisa Randall, Zhong-Zhi Xianyu, “Eccentricity Without Measuring Eccentricity: Discriminating Among Stellar Mass Black Hole Binary Formation Channels,” Astrophys. J. 914 (2021) 75 [arXiv:1907.02283 [astro-ph.HE]].

22、Lisa Randall, Zhong-Zhi Xianyu, “Observing Eccentricity Oscillations of Binary Black Holes in LISA,” arXiv:1902.08604 [astro-ph.HE].

23、Xingang Chen, Abraham Loeb, Zhong-Zhi Xianyu, “Unique Fingerprints of Alternatives to Inflation in the Primordial Power Spectrum,” Phys. Rev. Lett. 122 (2019) 121301[arXiv:1809.02603 [astro-ph.CO]].

24、Lisa Randall, Zhong-Zhi Xianyu, “A Direct Probe of Mass Density Near Inspiraling Binary Black Holes,” Astrophys. J. 878 (2019) 75 [arXiv:1805.05335 [gr-qc]].

25、Xingang Chen, Yi Wang, Zhong-Zhi Xianyu, “Neutrino Signatures in Primordial Non-Gaussianities,” JHEP 1809 (2018) 022 [arXiv:1805.02656 [hep-ph]].

26、Xingang Chen, Wan Zhen Chua, Yuxun Guo, Yi Wang, Zhong-Zhi Xianyu, Tianyou Xie, “Quantum Standard Clocks in the Primordial Trispectrum,” JCAP 1805 (2018) 049 [arXiv:1803.04412 [hep-th]].

27、Lisa Randall, Zhong-Zhi Xianyu, “An Analytical Portrait of Binary Mergers in Hierarchical Triple Systems,” Astrophys. J. 864 (2018) 134 [arXiv:1802.05718 [gr-qc]].

28、Djuna Croon, Ann E. Nelson, Chen Sun, Devin G. E. Walker, Zhong-Zhi Xianyu, “Hidden-Sector Spectroscopy with Gravitational Waves from Binary Neutron Stars,”  Astrophys. J. Lett. 858(2018) L2 [arXiv:1711.02096 [hep-ph]].

29、Lisa Randall, Zhong-Zhi Xianyu, “Induced Ellipticity for Inspiraling Binary Systems,” Astrophys. J. 853 (2018) 93 [arXiv:1708.08569 [gr-qc]].

30、Xingang Chen, Yi Wang, Zhong-Zhi Xianyu, “Standard Model Mass Spectrum in Inflationary Universe,” JHEP 1704 (2017) 058 [arXiv:1612.08122 [hep-th]].

31、Xingang Chen, Yi Wang, Zhong-Zhi Xianyu, “Standard Model Background of the Cosmological Collider,” Phys. Rev. Lett. 118 (2017) 261302 [arXiv:1610.06597 [hep-th]].

32、Xingang Chen, Yi Wang, Zhong-Zhi Xianyu, “Loop Corrections to Standard Model Fields in Inflation,” JHEP 1608 (2016) 051 [arXiv:1604.07841 [hep-th]].