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quant-ph2025
Decoding quantum low density parity check codes with diffusion
Zejun Liu, Anqi Gong, Bryan K. Clark
An efficient decoder is essential for quantum error correction, and data-driven neural decoders have emerged as promising, flexible solutions. Here, we introduce a diffusion model…
quant-ph2025
Classical simulability of Clifford+T circuits with Clifford-augmented matrix product states
Zejun Liu, Bryan K. Clark
Determining the quantum-classical boundary between quantum circuits which can be efficiently simulated classically and those which cannot remains a fundamental question. One approa…
quant-ph2025
Non-equilibrium quantum Monte Carlo algorithm for stabilizer Renyi entropy in spin systems
Zejun Liu, Bryan K. Clark
Quantum magic, or nonstabilizerness, provides a crucial characterization of quantum systems, regarding the classical simulability with stabilizer states. In this work, we propose a…