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Author

Sarang Gopalakrishnan

2 papers indexed here

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Preprint Aug 2026

Error-Adaptive Quasi-local Decoding of the Toric Code

Topological quantum memories need decoders that are both reliable and scalable, but these goals compete: globally informed decoders are accurate near threshold yet expensive, while strictly local rules are fast but can miss long-range structure. Motivated by recent recoverability and mixed-state viewpoints, we make thi...

Hossein Dehghani, Sarang Gopalakrishnan, M. Gullans · 0 citations
Preprint Aug 2026

Lieb-Schultz-Mattis Constraints for Quantum Channels: A Spacetime-Duality View

Quantum anomalies strongly constrain the possible behavior of many-body systems. A prime example is the Lieb-Schultz-Mattis (LSM) theorem, which relates UV symmetry and filling constraints to IR features of the energy spectrum and ground-state structure. Here, we ask how LSM constraints shape dynamical signatures and t...

Sarang Gopalakrishnan, Yu-Jie Liu, Tsung-Cheng Lu et al. · 0 citations

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