# 2022 Heralded Microwave Entanglement

## Scope

This is a self-contained reveal.js deck for the Aug 2, 2022 Raytheon BBN talk by Stefan Krastanov, titled around "Microwave-to-Optical Transduction," "Microwave-through-Optical Entanglement," and "Optical-to-Microwave Control." `HEADER.md` describes it as a pedagogical talk on entanglement generation and distillation in microwave qubits and links arXiv 2012.13408.

There are no immediate talk-version subfolders here. The immediate subdirectories are support/vendor folders: `dist/`, `plugin/`, and `fontawesome-free-6.1.2-web/`.

## Entry Points

- `presentation.html`: the actual deck.
- `HEADER.md`: archive metadata and iframe preview.

## Content Themes

- Shared entanglement introduction with Alice/Bob qubits, Bell-state labels, and hidden-variable/contextuality context.
- Color-center entanglement-generation protocols as background: DLCZ-like protocols, Barrett-Kok, single-photon reflection, and Duan-Kimble.
- Entangling transmons or other microwave qubits through microwave-to-optical transduction.
- Deterministic transduction hardware and protocol slides.
- Probabilistic heralding, the optically heralded entanglement PRL result, and rate-fidelity tradeoffs.
- Optical-to-microwave control using the three-mode Hamiltonian and optical-power scaling estimates.

## Assets And Patterns

- Shared entanglement/color-center assets include `alice.png`, `bob.png`, `art_installation.mp4`, `color_centers.png`, `color_centers_nuclear.png`, `DLCZ-*.png`, `BK.png`, `reflection-based.png`, and `Duan-Kimble.png`.
- Microwave/transduction-specific assets include `transduction_hardware.png`, `transduction_process.png`, `transduction_heralding.png`, and `transduction_heralding_sims.png`.
- The deck uses reveal.js black theme, local `custom.css`, KaTeX math, fragments, vertical slide stacks, `data-auto-animate`, fixed-bottom `ol.bib` citations, and inline styles for white-backed technical figures.
- This deck additionally loads the chalkboard plugin and Font Awesome styles from `plugin/chalkboard/`, `plugin/fontawesome.css`, and `fontawesome-free-6.1.2-web/`.

## Editing Guidance

- Edit `presentation.html` and local assets. Do not edit vendored reveal.js, chalkboard, or Font Awesome files unless deliberately updating those dependencies.
- Preserve relative paths and the local Font Awesome/chalkboard includes; removing them can break reveal initialization or controls.
- The first half overlaps conceptually and visually with `../2022-Color_Center_Entanglement/`; if copying slides between them, copy any required assets too because each deck is self-contained.
- Keep the microwave-specific section focused on transduction hardware, heralding, rate/fidelity, and control. Avoid expanding the color-center background unless the BBN audience context needs it.
- For content review, run `../tools/reveal_text.py presentation.html --max-chars 30000` from this folder.