Jeffrey Li




Hi! My name is Jeffrey Li and I'm a Quantum Science and Engineering PhD student at the University of Chicago focusing on quantum computing. I'm interested in various qubit platforms (superconducting, Rydberg array, vacancy-center), developing efficient hybrid interconnects, and applying this work in cavity/circuit QED. In support of my research, I'm also interested in hard/soft condensed matter physics and machine learning. Thanks for visiting my personal website.

Research (mostly)

Enhanced Neutral Atom Readout with Digital Post Processing


*Ongoing project*

Creating fast Rydberg atom control and classification with single site capabilities as part of professor Hannes Bernien's group. Building optical setup to allow single site addressing. Using C/C++ to specify sub-microsecond digital pulses and quickly classify bright/dark atoms. Filtering algorithm currently achieves >98% classification accuracy in realistic noisy environments with SNR < 0.1.

Superconducting Qubit Control with the QICK Package

*Ongoing project*

Created a complete superconducting qubit control system based on the QICK package as part of professor Andrew Cleland's group. Wrote wrapper that integrates the QICK codebase with LabRAD and other network connected devices (VNAs, SAs, etc...) through IEEE 488.2. Created codebase for single-qubit experiments (IQ scatter, T1/T2*/T2e, Rabi cycles, randomized Clifford benchmarking, etc...). Wrote FPGA gateware for nanosecond RF/DC pulse control with fast feedback capabilities.

Quantum Science Communication: @Qubites

*Ongoing project*

Getting students and young career professionals excited about quantum information, science, and engineering through both in-person outreach and social media content as part of the STAGE Lab. Reached more than 11,000 distinct individuals so far. Currently a technical advisor to the STAGE Lab's Quantum Games team.

Simulating and Building Novel Architecture Radiation Detectors ; Field Research of Ambient Radiation Levels

Designed/created radiation mass models for four DoD/NASA missions are part of the NREIP program; used Geant4 and MCNP to simulate their performance. Simulated and built plastic scintillator gamma ray detectors for Los Alamos National Laboratory that won a contract competition against DoD/DoE competitors. 

If you are reading this after December 2024, two of the probes I helped design (TERI, Nerdi-1B) are currently in space as part of STP-H10

Physical Reservoir Computing in Unit Modular Reconfigurable Robots

Used the HOOMD-blue simulation package to model a system of unit modular reconfigurable robots as part of professor Heinrich Jaeger's group. Leveraged the phase space complexity of the robots as a computational resource for physical reservoir computing in order to achieve autonomous locomotion.

Proved the feasibility of biopolymer-based pore fluids as an alternative to traditional soil fillers (e.g. cement) using a molecular dynamics code package as part of professor Dilip Gersappe's group. Tested rheological properties of the pore fluids and confirmed the formation of microstructures that dramatically increase soil strength.

While testing scintillators' optical properties for usage in the Large Hadron Collider's ATLAS experiment, helped discover the phenomena of UV-assisted optical recovery of irradiated scintillators. This process decreased the recovery time of irradiated glasses/plastics by 1600%.  This work has been presented and published in IEEE!

Used density functional theory code packages to probe 36 topologically-nontrivial material candidates. Observed phenomena indicative of topological insulators, Weyl materials, and Kramers Weyl materials. Investigated the electronic and chiral-magnetotransport properties of the Weyl and Kramers Weyl materials.

 









EXPERIENCES

University of Chicago: Pritzker School of Molecular Engineering

Joined the STAGE Lab at the University of Chicago's Pritzker School of Molecular Engineering. Leading in-person and online outreach for the QuSTEAM initiative with an emphasis on reaching students of historically disadvantaged communities. Feel free to check out the social media accounts I run as a part of that! https://linktr.ee/qubites

University of Chicago: Pritzker School of Molecular Engineering

Joined the Cleland Group at the University of Chicago's Pritzker School of Molecular Engineering. Fullstack development of qubit control systems using the QICK package. Designed a custom RF board to optimize ZCU-216 functionality board for superconducting qubits. Currently integrating my codebase with Labrad and developing two qubit operations. Also made a promo video for the lab!

Office of Naval Research: Naval Research Lab

Selected to be a part of the Naval Research Lab's Space Science Division as part of the U.S. Navy's Naval Research Enterprise Internship Program (NREIP). Simulated and built radiation detectors with novel architectures for NASA missions. Additionally conducted radiation field research for the Department of Homeland Security and Defense Threat Reduction Agency.

University of Chicago: James Frank Institute

Joined the Jaeger Lab at the University of Chicago's James Frank Institute. Examined the application of physical reservoir computing to autonomous locomotion of unit-modular reconfigurable robots by observing phase transitions in the reservoir's configuration space. 

University of Chicago: Varsity Crew

Started for UChicago's Varsity Crew team my Freshman and Sophomore years as a 7th seat on the Mens' 8 scull. Fastest individual times were a 1:32 500 and a 6:45 2k. Stopped after herniating my L4-L5 disk during training and discovering signs of early-onset osteoarthritis. 

University of Chicago: The Old Guard

Created student organization to prevent Asian elders from being targeted for hate crimes. Partnered with two local predominantly Asian churches and a community center to connect student volunteers with elderly Asian community members as they ran errands. Established phone call lines in Chinese, Japanese, Korean, Vietnamese, and Laotian. 

Stony Brook University: Garcia Center for Polymers at Engineered Interfaces

Selected to be part of the Garcia Center for Polymers' annual High School Research Program. As part of the Gersappe group, discovered and subsequently tested the usage of biological polymer-based pore fluids as sustainable soil fillers while part of the Materials Science and Chemical Engineering department. Research paper was recognized as part of the 2020 Regeneron STS Competition.

Gilman School: Hydroponics Initiative

Helped found and run an automated carbon-negative greenhouse at Gilman School that operated entirely without the usage of soil. Each season's harvest was donated to the local community as part of an effort to educate people about sustainable farming and generally bring awareness to pressing ecological matters like climate change.

University of Iowa: Experimental High Energy Physics

Selected to be part of the Belin Blank Center's Secondary Student Training Program. Worked with the Wetzel Lab in Experimental High Energy Physics department to test particle detector components for usage in the Large Hadron Collider's ATLAS experiment. Helped discover the phenomena of UV-induced optical recovery of scintillators. Research was presented at the 2019 IEEE Nuclear Science Symposium and Medical Imaging Conference and the 2019 Intel International Science and Engineering Fair (ISEF).

Bridges at Gilman School

Selected to be a student mentor for Bridges at Gilman School. Tutored Baltimore City students in a variety of topics and helped them apply for local magnet schools. Founded the Bridges Math Club to teach a competition math curriculum developed in conjunction with local public school teachers. Recognized as part of the 2019 Carson Scholarship Fund.

Thomas Jefferson High School: Project Intern

Under the mentorship of a Thomas Jefferson High School research teacher (my high school did not have a research program), independently discovered and identified 36 topologically nontrivial materials using a density functional theory code package. Later used maximally localized Wannier functions (MLWFs) to examine the electronic and chiral magnetotransport phenomena for each material. Research paper was recognized as part of the 2017 Siemens Competition.*

*Archived link. The Siemens Competition was discontinued in 2018.












ACCOLADES 

Click on any of the accolades below for more information!

2024


2023

 

 

 

2022

  


2021

2020

 

 

 

2019

 

 

 

 

 

 

2018

 

 

 

 

 

2017

 

 

Pre-2017

National Science Foundation: Graduate Research Fellowship Program Awardee

University of Chicago: Metcalf Fellow

Purdue Symposium on Education in Entertainment and Engineering (SEEE): 2nd Place Poster Presenter

Argonne National Lab Open House: Presenter

University of Chicago Materials Research Science and Engineering Center (MRSEC): 1st Place Poster Presenter

University of Chicago: Metcalf Fellow

Fermilab National Lab QICK Conference: Presenter

University of Chicago: Metcalf Fellow x2

Los Alamos National Laboratory: Winner of Gamma Ray Spectrometer Contract Competition (as part of NRL lab)

University of Chicago: Metcalf Fellow x2

Regeneron Science Talent Search (STS): Top 300 Scholar

United States Physics Olympiad (USAPhO): Semifinalist

National Merit Scholarship: Finalist

Maryland State Music Teachers Association (MSMTA) Maryland State Piano Competition: First Place

Intel International Science and Engineering Fair (ISEF): Finalist

Scholastic Writing Competition: Gold Key

Carson Scholars Fund: Scholarship Recipient

Gilman School: James L. Sinclair Memorial Scholarship Recipient

National History Bowl: Varsity Division Rank #26

Maryland State Music Teachers Association (MSMTA) Maryland State Piano Competition: First Place

Breakthrough Junior Challenge: Top 5% Video

United States Physics Olympiad (USAPhO): Semifinalist

American Invitational Mathematics Examination (AIME): Qualifier

Scholastic Writing Competition: Silver Key

National History Bowl: Varsity Division Rank #30

Maryland State Music Teachers Association (MSMTA) Maryland State Piano Competition: First Place

Breakthrough Junior Challenge: Top 5% Video












Pictures

Dinner with part of the STAGE Lab after a poster session at Purdue's SEEE.

Dilution fridge chandelier for the transmons, TWPAs, JPAs, and other quantum devices that I write code to control. Affectionately called Stark by group members.

Interviewing visitors at the Argonne Open House after my presentation.

Hiking up Old Rag Mountain in Virginia. Not my brightest idea with a herniated disk.

Hydroponics dome with an absurdly large amount of basil and parsley. I ate basil pesto for more than a month after this harvest.

Showing Cleland Group members how to perform single-qubit experiments with my code base.