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.
Physics & mathematics at Duke
Yubraj
Bhandari.
Finding structure
in complex systems.
I study physics and mathematics at Duke, building computational tools to investigate difficult questions—from quantum dynamics to medical imaging and the air we breathe.
Portrait forthcoming
Structure, with room for uncertainty.
Durham, NC ● NepalExplore the work
Currently exploring
Updated
What the observable needs
Readout-aware quantum dynamics and structured operator representations.
Explore the question ↗What measurements can tell us
Differentiable CT physics, inverse problems, and identifiability.
Explore the question ↗Where to measure next
Pollutant transport, sparse observations, and sensor placement.
Explore the question ↗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 ↗