Low-Density Parity-Check Stabilizer Codes as Gapped Quantum Phases: Stability under Graph-Local Perturbations

We generalize the proof of stability of topological order, due to Bravyi, Hastings, and Michalakis, to stabilizer Hamiltonians corresponding to low-density parity-check (LDPC) codes without the restriction of geometric locality in Euclidean space. We consider Hamiltonians H_{0} defined by ⟦N,K,d⟧ LD...

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Bibliographic Details
Main Authors: Wojciech De Roeck, Vedika Khemani, Yaodong Li, Nicholas O’Dea, Tibor Rakovszky
Format: Article
Language:English
Published: American Physical Society 2025-08-01
Series:PRX Quantum
Online Access:http://doi.org/10.1103/7x71-8j7k
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