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Alpharceus/README.md

Raman Pandey

Graduate Research Assistant at the Center for High Technology Materials (CHTM), University of New Mexico, in Prof. Marek Osinski's group. I work on the NSF NQVL QCAP project — electrically driven semiconductor quantum-dot single-photon sources, aimed at room-temperature operation with in-plane SiN waveguide coupling. Co-advised on continuous-variable photonic quantum error correction by Prof. Olivier Pfister at the University of Virginia.

BS in Computer Engineering and Astrophysics (UNM, 2025) → MS in Electrical and Computer Engineering, quantum information concentration (2026) → continuing into a PhD in ECE (QIS) in Prof. Osinski's group at CHTM.

What I work on

  • Quantum-dot single-photon sources — electrically driven semiconductor QD emitters targeting room-temperature operation with in-plane SiN waveguide coupling; device modelling public in qd-photon-sim.
  • Programmable photonics (MZI meshes) — simulating and programming Clements/Reck interferometer meshes, unitary decomposition, and Fock-state amplitudes; public as MZIMesh.
  • Continuous-variable photonic QEC — code theory and encoding circuits, and resource-overhead calculation for CV codes.
  • Single-photon detector readout — SPAD and SNSPD instrumentation, including FPGA time-to-digital conversion (FPGAReadout-Vivado-code).
  • Clocks and timing — precision clock and synchronization systems for photonic experiments.
  • Systems-level engineering — the connective tissue for all of the above: HDL, embedded firmware, lab instrumentation, and full-stack software. The personal repos below are the same skill set off the clock.

Everything else here is personal engineering — local-first AI, embedded and FPGA builds, and full-stack side projects — kept public and described plainly rather than curated away.

Tech stack

Languages

Python Julia VHDL TypeScript JavaScript C++ C# C

Scientific computing

NumPy SciPy Plotly / Dash LaTeX

FPGA & embedded

AMD Vivado Zynq / Artix-7 ESP32

Apps & web

React Native Expo Svelte Tauri FastAPI Streamlit Firebase SQLite p5.js

Local AI

Ollama llama.cpp

Tools

Git GitHub Actions

Highlights

MZIMesh Julia package for MZI mesh simulation — Clements/Reck topologies, unitary decomposition, exact Fock-state amplitudes via Ryser permanents
qd-photon-sim Predicts single-photon purity and brightness of quantum-dot emitters vs. temperature; validated across three material systems
FPGAReadout-Vivado-code Delay-line time-to-digital converter in VHDL for SNSPD pulse readout on a Zynq-7020
tightbinding Hardware Monte Carlo transport on a 7×7 lattice in VHDL — seven LFSR walkers, UART histogram streaming
project-orion Fully local voice assistant: llama.cpp + Gemma, voice cloning, custom wake word, Tauri/Svelte HUD — no cloud, no API keys
project-hercules Strength-training tracker: React Native/Expo + Firestore, XP/rank engine in TypeScript and Python with shared test vectors

Links

Website LinkedIn

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  1. Alpharceus.github.io Alpharceus.github.io Public

    Personal site (ramanpandey.com): hand-built static site with a p5.js constellation interface, markdown blog build step, and CI deploy

    JavaScript

  2. MZIMesh MZIMesh Public

    Julia package for simulating and programming MZI meshes — Clements and Reck topologies, Clements decomposition of arbitrary unitaries into phase settings, and exact Fock-state amplitudes via Ryser …

    Julia

  3. project-hercules project-hercules Public

    Personal strength-training tracker: React Native/Expo + Firestore, an XP/rank engine implemented in TypeScript and Python with shared test vectors, and a Dash desktop dashboard

    TypeScript

  4. galton-board-fpga galton-board-fpga Public

    Galton board implementation in VHDL for the Digilent Nexys A7 (Artix-7) - LFSR-driven random walk into 8 bins with LED display and live UART histogram streaming

    VHDL

  5. qd-photon-sim qd-photon-sim Public

    Simulator predicting single-photon purity and brightness of quantum-dot emitters versus temperature, and inverting a purity target into per-component requirements; validated across three material s…

    Python

  6. project-orion project-orion Public

    Fully local voice-driven desktop assistant (Jarvis): llama.cpp + Gemma 4 12B, PocketTTS voice cloning, custom wake word, Tauri/Svelte HUD, and 13 agent tools — no cloud, no API keys.

    Python