Add 2026 fellow page for Alan Chen

_fellows/2026/YilunUMichChen.md

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+---
+layout: fellow
+pagetype: fellow
+shortname: YilunUMichChen
+permalink: /fellows/YilunUMichChen.html
+fellow-name: Alan Chen
+title: Alan Chen - IRIS-HEP Fellow
+active: True
+dates:
+  start: 2026-07-02
+  end: 2026-08-30
+photo: /assets/images/team/fellows-2026/Alan-Chen.jpg
+institution: University of Michigan
+e-mail: yilunch@umich.edu
+focus-area: ia
+challenge-area:
+project_title: Logic Gate Neural Networks for Jet Substructure Classification
+project_goal: >
+  This project investigates logic neural networks (LNNs) for low-latency
+  jet-substructure classification in high-energy physics. Using torchlogix, it
+  will establish a reproducible workflow that trains differentiable logic
+  networks, discretizes them into Boolean circuits, and validates compiled
+  inference against the discrete software model. The study will evaluate
+  trade-offs among classification accuracy, Boolean-circuit complexity, and
+  inference latency to support hardware-efficient deployment in trigger-oriented
+  workflows.
+mentors:
+  - Liv Våge (Princeton University)
+  - Lino Gerlach (Princeton University)
+proposal: /assets/pdf/fellows-2026/USA008-proposal-Alan-Chen.pdf
+presentations: []
+current_status: ""
+github-username: YilunUMichChen
+linkedin-profile: https://www.linkedin.com/in/alan-chen-66b852384
+---