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M.S. In Physics – Quantum Computing Events

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Events During the Week of September 14th through September 21st, 2025

Monday, September 15th, 2025

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Tuesday, September 16th, 2025

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Wednesday, September 17th, 2025

Wisconsin Quantum Institute
Succinct Arguments for BatchQMA and Friends under 8 rounds
Time: 2:30 pm - 3:30 pm
Place: Rm. 3610, Morgridge Hall
Speaker: Rishab Goyal, UW-Madison
Abstract:

We study the problem of minimizing round complexity in the context of succinct classical argument systems for quantum computation. All prior works either require at least 8 rounds of interaction between the quantum prover and classical verifier, or rely on the idealized quantum random oracle model (QROM). We design:

1. A 4-round public-coin (except for the first message) argument system for batchQMA languages. Under the post-quantum hardness of functional encryption and learn- ing with errors (LWE), we achieve optimal communication complex- ity (i.e., all messages sizes are independent of batch size). If we only rely on the post-quantum hardness of LWE, then we can make all messages except the verifier’s first message to be independent of the batch size.

2. A 6-round private-coin argument system for monotone policy batchQMA languages, under the post-quantum hardness of LWE. The communication complexity is independent of the batch size as well as the monotone circuit size.

Unlike all prior works, we do not rely on “state-preserving” succinct arguments of knowledge (AoKs) for NP for proving soundness. Our main technical contribution is a new approach to prove soundness without rewinding cheating provers. We bring the notion of straight-line partial extractability to argument systems for quantum computation.
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Thursday, September 18th, 2025

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Friday, September 19th, 2025

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