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Working with Robots!
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Working with Robots!

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alanknguyen/README.md

Nguyen Khoi Nguyen (Alan)

Physics + Computer Science @ Boston University
Computational physics, photonics, embodied AI, robotics

LinkedIn Email GitHub

What I'm Working On

VLM/VLA Manipulation on Sawyer Hardware Hierarchical action decomposition from language-conditioned policy outputs to parameterized ROS2 action servers. Perception stack: RGB-D point clouds, open-vocabulary segmentation (SAM/GroundingDINO), 6-DoF pose estimation, scene graph construction. Working on a reinforcement-learning paradigm paper with PhD students.

Background

Bachelor's in Physics and Computer Science (dual degree) from Boston University. Research background in computational optical physics: intensity diffraction tomography, Fourier optics, FDTD photonic device simulation, and cavity quantum electrodynamics. Coursework and research spanning condensed matter theory, nano-optics, and quantum engineering.

Currently: Moved to Embodied/Physical AI + Systems Robotics at the Dependable Computing Lab under Professor Wenchao Li.

Skills

Robotics & Embodied AI: VLM/VLA-to-robot execution, language-conditioned manipulation, sim-to-real transfer, perception (RGB-D, open-vocab segmentation, 6-DoF pose), closed-loop TAMP

Computational Physics & Photonics: Fourier optics (ASM, vectorial diffraction), FDTD device simulation, cavity QED (Jaynes-Cummings, Lindblad), intensity diffraction tomography, quantum state engineering

Full-Stack Engineering & MLOps: Production SaaS (GreenMetric.ai), hybrid ML/deterministic pipelines, CI/CD, model validation, deployment on Render/AWS

What I Work On

Robotics + Embodied/Physical AI (Current)
Language-conditioned manipulation pipelines on a 7-DoF Sawyer arm. VLM/VLA inference mapped to hierarchical ROS2 action execution. Perception stack: RGB-D point clouds, open-vocabulary segmentation, 6-DoF pose estimation, scene graph construction. Sim-to-real transfer via Isaac Sim with domain randomization.

Computational Physics + Photonics (Previous)
Intensity diffraction tomography (reflection-IDT with novel transfer function derivations). Fourier optics simulation (angular spectrum method, vectorial diffraction). FDTD photonic device design (Tidy3D: directional couplers, loop mirrors, waveguide analysis). Cavity QED simulations: Jaynes-Cummings dynamics, Wigner function evolution, Lindblad master equation.

Quantum States of Light in Cavity QED Computational study of Schrödinger cat-state formation, entanglement dynamics, photon blockade, and decoherence. 256-point Lindblad parameter sweep, 9 animations, 20+ figures. Code


Selected Repositories

Repository Description
QSOL_CQED Computational study of quantum states of light in cavity QED systems. Numerical simulations of Wigner function dynamics, vacuum Rabi splitting, photon blockade (g⁽²⁾), and atom-field entanglement entropy in the Jaynes-Cummings model. Includes phase diagrams, parameter sweeps, and decoherence analysis. Built with QuTiP; REVTeX manuscript included.
OpenGreenMetric Open-source environmental impact scoring engine behind GreenMetric.ai. Hybrid inference pipeline combining deterministic lifecycle-assessment models with LLM-assisted entity extraction and product classification. Computes structured sustainability scores from URLs, text, and image inputs for EU Green Passport compliance.
More repositories pinned below.

Research + Publications

Quantum States of Light in Cavity QED (2025, arXiv submission in progress)
Computational study of Schrodinger cat-state formation, atom-field entanglement dynamics across four field states, and decoherence via the Lindblad master equation. Code

Reflection-Mode Intensity Diffraction Tomography (BU, 2024)
Extended IDT to reflection geometry with mirror-assisted illumination. Derived new optical transfer functions for 3D refractive index reconstruction.


Education

M.S. Electrical & Computer Engineering (Systems Robotics), Boston University (starting Sept 2026)
Bachelor's in Physics & Computer Science (Dual), Boston University (Dec 2025)

Pinned Loading

  1. QSOL_CQED QSOL_CQED Public

    Computational study of quantum light-matter interaction in the Jaynes-Cummings (JC) model. All dynamics are computed from first principles using QuTiP, with no phenomenological approximations

    Python 11 2

  2. ai-machine-learning ai-machine-learning Public

    🤖 A public repository for my machine learning notes. This will also contain lectures and sample data sets that I have gathered from various sources, including CS229 (Stanford), CS542 (BU), MLS (dee…

    Jupyter Notebook 5 2

  3. webprojects webprojects Public

    🌏 This public repository includes some of my web-based projects. The majority of content of this repo will be written using JS, HTML, CSS, and Objective-C. There are a few projects that are collabo…

    CSS 5 2

  4. OpenGreenMetric OpenGreenMetric Public

    Open-source Life Cycle Assessment engine that scores any consumer product's environmental footprint using activity-based emission factors, Monte Carlo simulation, and machine learning. Includes Fas…

    Python 2 1

  5. py580-MLforPhysicists py580-MLforPhysicists Public

    A repo for BU PY580 - Machine Learning for Physicists course. This course was taught by professor Pankaj Mehta, originally in 2021.

    Jupyter Notebook 2 1

  6. OptiTrack_V120Trio_Vision OptiTrack_V120Trio_Vision Public

    Computer Vision Set up for OptiTrack V120 Trio with Motive 3.3.4.

    Python 1