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PhD Proposal: Towards Trustworthy Distributed Quantum Computing: From Programming, Semantics, and Verification to Executable Programs
Le Chang
IRB-5107 https://umd.zoom.us/j/4087857922
Wednesday, April 8, 2026, 11:00 am-12:30 pm
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Abstract

Distributed quantum computing is a leading approach to scaling quantum computation beyond the capacity of a single quantum processing unit. At the same time, this setting introduces programming, semantics, and verification challenges as quantum communications have environment-dependent costs, measurements induce probabilistic control flow, and distributed execution introduces scheduling nondeterminism. These features make it difficult to reason end-to-end from high-level, large-scale quantum programs to executable implementations and machine-checkable correctness arguments.

To address these challenges, I propose four complementary frameworks for trustworthy distributed quantum computing: (1) Quantum Shared Memory (QSM), a programming-runtime abstraction boundary for adaptive distributed execution; (2) DisQ, a distributed semantic model with refinement support for relating implementations to higher-level specifications; (3) a compositional LOCC verification framework based on quantum Hoare logic over entangled resources, with ongoing Coq mechanization for reusable proof infrastructure; and (4) a certified lowering framework from verified LOCC programs to distributed executable artifacts, which will define a restricted lowering function and prove that admissible target executions preserve the source-level postcondition under an explicit schedule policy.

Bio

Le is a PhD student advised by Prof. Runzhou Tao. She is broadly interested in quantum programming languages and verification.

 

Examining Committee Chair: Dr. Runzhou Tao

Department Representative: Dr. Leonidas Lampropoulos

Members: 

Dr. Xiaodi Wu

This talk is organized by Migo Gui