Authors

Qian Xu

Publications 2

Preprint Open access

Single-shot magic state factories for quantum LDPC codes

Varun Menon, Rohan Mehta, Andi Gu et al. · 2026

Quantum low-density parity-check (qLDPC) codes can substantially reduce the qubit overhead of fault-tolerant quantum computation, but any useful architecture based on such codes also requires an efficient mechanism to implement non-Clifford gates in a fault-tolerant manner. We introduce a space-time-efficient magic sta …

Preprint Open access

Federated Agent Optimization

Large language model (LLM) agents increasingly operate in private environments and accumulate valuable experience from task execution, tool use, feedback, and local knowledge. Yet such experience is distributed across organizations and cannot be directly shared because of privacy and proprietary constraints. Convention …

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