Research · Manuscript in preparation
Quantum simulation & operator dynamics
What needs to be simulated when we only care about a particular observable?
Readout-aware approximation in structured operator bases.
Yubraj
Bhandari.
What am I up to right now?
Hi, I'm Yubraj, a physics and mathematics undergraduate at Duke, originally from Nepal. Right now I'm chasing three questions: what a quantum simulation really has to keep when we only care about one observable, what a CT measurement can and can't tell us, and how few sensors it takes to work out where air pollution comes from. Around that I build small scientific tools, mentor high school students in Nepal through Unnchai, and, away from the screen, play chess and cook.
You can read more about me, browse my work and notes, skim my CV, find me on GitHub and Google Scholar, or just get in touch.
Selected work
All research, software & community ↗Research · Published
AbdomenGen
How can we vary organ size while keeping a generated abdomen anatomically coherent?
Sequential, volume-conditioned diffusion for 3D anatomy.
Research
CTsynth
What can spectral CT measurements tell us—and what remains unidentifiable?
Differentiable forward models, numerical adjoints, and material decomposition.
Research
PRAVAH
How much can sparse measurements reveal about pollutant transport and sources?
PDE simulations, source inversion, and sensor-placement experiments.
Notes & ideas
The writing archive ↗Things I’ve learned, questions I’m following, and resources worth sharing.
Education
Rant on my journey to Duke (and some general college application guidance)
My journey from Nepal to Duke, and some thoughts on college applications.
Astronomy
A Preparation guide for International Olympiad on Astronomy and Astrophysics
Resources and guidance for the International Olympiad on Astronomy and Astrophysics.
Computing
My Machine-Learning Resources Dump (with Short Reviews)
A small collection of machine-learning courses and resources.
Learning & giving back
A little more about me ↗Good questions belong to everyone.
Through Unnchai, I mentor high school students in Nepal on quantum algorithms. I care about making learning resources and educational opportunities easier to find—and leaving room to explore beyond formal research.
Community & education ↗