CV

EDUCATION

• Master of Science in Astrophysics, Ludwig-Maximilians-Universität München, Germany 2022 - present
• Bachelor of Science in Physics, Jilin University, China 2018 - 2022

RESEARCH EXPERIENCE

Scattering Transform Pipeline on Cosmological Constraints

• Master thesis, University Observatory Munich & Max Planck Institute for Extraterrestrial Physics Nov 2023 - present
  • Wavelet convolution on weak lensing convergence maps.
  • Performed cosmological parameter forecast with Fisher analysis using scattering coefficients (mean value of mod- ulus of convolved maps).
  • Captured non-Gaussian information.
  • Developed neural network-based emulators trained on CosmoGridV1 simulations to predict scattering coefficients for different cosmologies. Used these emulators to perform MCMC sampling and obtained posterior distributions, thereby deriving precise cosmological forecasts.
  • Implemented the emulators trained in different tomographic bins and cosmologies with noise to conduct a tomo- graphic analysis, and derived cosmological constraints on observational data.
  • Supervisors: Dr. Stella Seitz & Zhengyangguanggong (Laurence) Gong

RSD Effect on Projected Three-Point Statistics

• Research intern, University Observatory Munich & Max Planck Institute for Extraterrestrial Physics Aug 2024 - present
  • Exploring how RSD of galaxies affects the projected three-point statistics.
  • Currently focusing on quantifying the impact of RSD on the integrated three-point correlation function (i3PCF) and to gain insights into galaxy clustering and cosmological parameters.
  • Supervisors: Dr. Stella Seitz & Dr. Anik Halder

Time-dependent Kinetic Analysis of Positron-Hydrogen Collision Process

• Bachelor thesis, Jilin University Dec 2021 - May 2022
  • Investigated the scattering problem of positron and hydrogen through time-dependent wave function evolution for both particles. Applied the five-point formula to obtain the hydrogen atom’s ground state wave function and expressed the system’s Hamiltonian on a position grid.
  • Used five-point formula to express kinetic energy term and got the Hydrogen atom ground state wave function
  • Expressed the Hamiltonian of Hydrogen and positron in momentum space
  • Brought the initial wave function of the whole positron and hydrogen into evolution function, used split operator to evolve and got final wave function
  • Supervisor: Prof. Liguang Jiao

Influence of Target Membrane Material on Neutron Tube and Its Service Life

• Research intern, Jilin University May 2020 - Oct 2020
  • Explored the influence of the target membrane material and its surface layer Deuterium-Tritium on the neutron yield and the service life of the neutron tube
  • Mixed rare earth elements which can improve the alloy properties and possess good hydrogen storage effect into the titanium membrane material, used SRIM to figure out energy loss, calculated the neutron yield, compared with the performance of scandium, and found the most suitable doping metal
  • Got the conclusion that the neutron yield of lutetium-titanium alloy is the highest when the doping mass ratio is 0.2
  • Supervisor: Prof. Jingbin Lu

Materials Physics and Battery

• Research intern, Jilin University Oct 2019 - Jan 2020
  • Prepared chlorophyll films of different thicknesses by the spin-coating method in a nitrogen environment, produced chlorophyll cells, and tested the conductivity of different film thicknesses
  • Analyzed the influence of rotation speeds on the chlorophyll film from collected data, and generalized the conductivity of the chlorophyll cell under different rotation speeds
  • Supervisor: Prof. Xiaofeng Wang

COURSE PROJECTS

Gravitational Dynamics

• Ludwig-Maximilians-Universität München Jul 2023 - Aug 2023
  • Explored the possibility of capturing a meteorite at Lagrangian 4 Point of Sun: set the initial state of the particle so that it is just transported to the Lagrangian point so that it is in that position, rotating around the sun like Jupiter
  • Conclusion: circular motion is possible only when the minimum effective potential energy is equal to the total energy, which means there is no radial motion. A little deviation from that state will not lead to a perfect circular motion.
  • Course Report

Hydrodynamics

• Ludwig-Maximilians-Universität München Jan 2023 - Feb 2023
  • Nozzle Shape’s Influence on Acceleration: explore the influence of the shape of the nozzle throat on the effect of the nozzle, and the change of the speed of the particles before and after.
  • Conclusion: the shape of the obstacle in nozzle phenomena has little effects on the profile of velocity increase and internal energy, pressure and density distribution profile. But the width of the nozzle gap width will have visible effects on velocity acceleration. And if the gap is too narrow and the path is long, it will probably cause choking, which will not have nozzle acceleration effect

Computational Physics

• Jilin University Sept 2021 - Nov 2021
  • Derived the algebraic expression of the electromagnetic field excited by the magnetic dipole source in the homogeneous medium and the corresponding integral expression from Maxwell equations and Hertz formula
  • Used the cubic spline fitting integration method and Gauss-Legendre integration method separately and combined them to calculate the integral expression of the electric field and magnetic field in cylindrical coordinates with MATLAB
  • Compared the accuracy of the results of these three calculations with the results of algebraic calculations

EXTRA CURRICULAR ACTIVITIES

Tonale Winter School on Cosmology 2024 Dec 2024

• University of Heidelberg
• “Theory for Observers & Observations for Theorists”: Dark Energy, Galaxy Clusters, Data Inference and Machine Learning, Testing Fundamental Physics with GWs.

Winter Academic Program Jan 2022 - Feb 2022

• University of Cambridge
• Grasped Machine Learning and basic knowledge of Quantum Computing, and took Grover’s Algorithm as an example to research what is QC good for and why

Statistical Physics and Complex Systems Summer School Aug 2021

• Northeast Normal University
• Studied the application of statistical physics in molecular simulation, biophysical neural network, economics, finance

Summer Academic Program Jul 2021

• University of Cambridge
• Learned Random-field Ising model, Random-field Ising model, Synergy and Bifurcations in Epidemics

Quantum Physics Online Project-Based Learning Program Oct 2020 - Dec 2020

• Massachusetts Institute of Technology
• Studied quantum mechanics and the development of quantum theory, earning grade A
• Calculated the expression of finite potential well with the Schrodinger equation, and showed the form of the final solution in graphs

HONORS & AWARDS

• Canada Mitacs Globalink Research Internship Scholarship Oct 2021
• First Prize Scholarship, Jilin University (Top 5%) Sept 2020
• Merit Student Jun 2020
• Outstanding Student Leader May 2020
• Outstanding Volunteer Oct 2019
• Second Prize Scholarship, Jilin University (Top 10%) Sept 2019

COMPUTER SKILLS

• Python: 4 and a half years experience including master thesis project. Numerical course projects, data handling in Astrophys- ical Lab, and statistical analysis including Bayesian analysis.
• C/C++: 2 years of experience with bachelor’s course project and simulations in gravitational dynamics course.
• MATLAB: 1 year of experience utilizing MATLAB for computational physics coursework and bachelor thesis project.
• Other computational skills: LaTeX, Mathematica, Origin, MS packages
• Often-used Packages: PyTorch, emcee, ChainConsumer