Openings

We are looking for new members to join our group. Please email Prof. Yuan Shi for more information.
To be considered for the following positions, please send your CV and transcripts.

If you are a prospective student, please apply to CU’s Graduate Program in Physics. If you are a current student, please reach out directly.

Simulation/theory: lattice QED simulations of plasma dynamics

Quantum electrodynamics (QED) is the most fundamental theory describing charged particles interacting with electromagnetic fields. While plasma kinetic codes, such as Vlasov and particle-in-cell codes are the gold standard for classical plasma phenomena, they cannot self-consistently describe high-energy processes, such as radiation reaction and electron-positron pair production. In this role, you will develop lattice QED into a novel plasma simulation tool. You will develop algorithms, write computer codes, and perform simulations on supercomputers.

Experiment/simulation: magnetized laser-plasma interactions

Applying magnetic fields to laser-driven inertial fusion experiments has shown promise to achieve more robust implosions with higher fusion yields. In this role, you will understand how magnetic fields affect laser-plasma interactions using experiments at the Omega Laser Facility. You will design experiments using simulations and Computer Aided Design software. You will interface with engineers and technicians to conduct experiments. You will post processing and analyze experimental data. After initial training, you will have opportunities to propose and lead experimental campaigns. You will work closely with scientists at the Lawrence Livermore National Laboratory, and impact future magnetized High Energy Density programs.

Theory/simulation: quantum computing for highly excited atoms

In plasma environment, atoms are excited and ionized. Understanding their properties requires modeling processes including bond-bond, bond-free, and free-free electronic transitions. Unlike usual atomic physics where only valence electrons matter, now the core and free electrons also participate. The number of transitions explodes exponentially as the atomic number increases, making quantum computers a prime candidate for carrying out ab initio simulations. In this role, you will develop theories and explore algorithms that may enable efficient quantum simulations.

Simulation: magnetized laser-plasma interactions (MagLPI)

In this role, you will learn about plasma physics, and use computer simulations to understand MagLPI. You will use existing software to generate and analyze data, with a focus on new situations that have not been studied. A successful summer internship will transition to an Honor thesis during the academic year. To be considered for the position, the student must have a good academic standing (GPA > 3.3), and have taken PHYS 1125, PHYS 2210 and PHYS 2600 (or equivalent) with A/A- grades. Having knowledge of plasma physics is a plus but not required.

Theory: generalization of classical mechanics

In this role, you will explore what happens when some basic assumptions of classical mechanics are loosened. You will solve differential equations and analyze sensitivities of different assumptions. A successful summer internship will transition to an Honor thesis during the academic year. To be considered for the position, the student must have a good academic standing (GPA > 3.3) and have taken MATH 3430 and PHYS 3210 (or equivalent) with A/A- grades. Having knowledge of general relativity and differential geometry is a plus but not required.