Welcome to Xin Ren's Homepage

Hi, this is Xin Ren (任鑫), a PhD candidate at University of Science and Technology of China (USTC).

Contact Details

Address: Room 18016, Lihua Building, Department of Astronomy, USTC,
96 Jinzhai Road, Hefei, Anhui 230026, P. R. China.
Telephone: +86-13170153650
Email Address: rx76@mail.ustc.edu.cn

Education

2017.09-Now

Ph.D candidate in Astronomy
Department of Astronomy, School of Physical Sciences
University of Science and Technology of China

Major : Cosmology     the Particle Cosmology Group at USTC
Supervisor : Prof. Yi-Fu Cai

2013.08-2017.06

Bachelor of Sciences in Physics
Poling class of Physics
Nankai University

 Download CV

RESEARCH INTERESTS

My research interests include the exploration of the dynamical history of the universe, especially the dark energy models, modified gravity and the test of candidate theories on different scales.
During the PhD time, my research interest focuses on the following topics:

1) Understanding the cosmic dynamic characteristics and physical mechanisms of observational hints.
2) Exploring the dark energy phenomenological models and modified gravity (mainly f(T) gravity) and investigating their possible observational effects.
3) Using observational data to reconstruct or constrain the various theoretical parameters and looking for new observational experiment window to test models of gravity or cosmology.

Publications

Please visit the INSPIRE for details

  1. Deflection angle and lensing signature of covariant f(T) gravity

    2. Xin Ren, Yaqi Zhao, Emmanuel N. Saridakis, Yi-Fu Cai.
    JCAP 10 (2021), 062 [arxiv:2105.04578 [astro-ph.CO]]

  2. Data-driven Reconstruction of the Late-time Cosmic Acceleration with f(T) Gravity.

    3. Xin Ren, Thomas Hong Tsun Wong, Yi-Fu Cai, Emmanuel N. Saridakis.
    Phys.Dark Univ. 32 (2021), 100812. [arxiv:2103.01260 [astro-ph.CO]]

  3. Testing the equivalence principle via the shadow of black holes.

    4. Sheng-Feng Yan, Chunlong Li, Lingqin Xue, Xin Ren, Yi-Fu Cai et al.
    Phys.Rev.Res. 2 (2020) 2, 023164. [arxiv:1912.12629 [astro-ph.CO]]

  4. Implications of the possible 21-cm line excess at cosmic dawn on dynamics of interacting dark energy.

    5. Chunlong Li, Xin Ren, Martiros Khurshudyan Yi-Fu Cai.
    Phys.Lett.B 801 (2020), 135141. [arxiv:1904.02458 [astro-ph.CO]]

Conferences

  • Oral presentation

    • 2018.11

    “Cosmic dawn and running vacuum models”
    Zhuhai Cosmology Winter Workshop 2018, Zhuhai, China

    2019.08

    “21 cm line signal at cosmic dawn with Interacting dark energy”
    2019 Symposium on Frontiers in Theoretical Physics, Lanzhou, China

    2019.11

    “Reconstruct the history of the universe in f(T) gravity through observational data”
    Autumn workshop on gravity and cosmology, Warsaw, Poland

    2021.04

    “Data-driven Reconstruction of the Late-time Cosmic Acceleration with f(T) Gravity”
    2021 CQU & USTC Junior Cosmology Symposium, Chongqing, China

    2021.06

    “Spherically symmetric solutions in covariant and pure tetrad formulation of f(T) gravity - II”
    Workshop-Seminar: Covariance in Teleparallel Gravity, Online

    2021.07

    “Data-driven Reconstruction of the Late-time Cosmic Acceleration with f(T) Gravity”
    Sixteenth Marcel Grossmann Meeting, Online

      See More

    Relevant Experiences

    2017.09-Now

    Research assistant with Prof. Yi-Fu Cai, USTC

    2020 Fall

    Teaching Assistant of Space and Time (022172) with Prof. Yi-Fu Cai, USTC

    2019.10-2019.11

    Internship at Warsaw university with Prof. Chunshan Lin

    2016.01-2016.03

    Internship at University of Sydney with Prof. Geraint F. Lewis

    2015.06-2015.08

    Internship at Institute of Modern Physics, Chinese Academy of Sciences with Prof. Sergei Maydanyuk and Prof. Pengming Zhang

    2018.03

    Conference Volunteer of 2018 CfA@USTC Junior Cosmology Symposium: Gravitational Waves and Early Universe

    2019.07

    Volunteer of the first summer camp of astronomy Department of USTC

    Selected awards and honors

    Academic related

    2021-2022

    Doctoral First-class academic scholarship in USTC

    2020-2021

    Doctoral First-class academic scholarship in USTC

    2019-2020

    Doctoral First-class academic scholarship in USTC

    2018-2019

    Master's First-class academic scholarship in USTC

    2017-2018

    Master's First-class academic scholarship in USTC

    2016-2017

    Merit student in Nankai University

    2015

    The Technical Institute of Physics and Chemistry, Chinese Academy of Sciences scholarship

    2017

    The 11th Nankai University Characteristic Dormitory "Learning Dormitory"

    2016

    The 10th Nankai University Characteristic Dormitory "Learning Dormitory"

    2015

    The 9th Nankai University Characteristic Dormitory "Learning Dormitory"

    Non-Academic related

    2018.12

    Team first prize of autumn Badminton competition of School of Physics, USTC

    2013.11

    Best Rookie team award in volleyball Option class competition, NKU

    • The most incomprehensible thing about the universe is that it is comprehensible

      —— Albert Einstein

    • Keep your eyes on the stars, and your feet on the ground.

      —— Theodore Roosevelt

    Friendly link

  • arXiv arXiv.org
  • INSPIRE inspirehep.net
  • USTC University of Science and Technology of China
  • NKU Nankai University
  • Department of astronomy University of Science and Technology of China
  • Cospa at USTC Particle Cosmology Group at USTC
  • Yi-Fu Cai Homepage