214 citations · 524 across the 16 of their papers we have counts for
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quant-ph2024
Information dynamics in decohered quantum memory with repeated syndrome measurements: a dual approach
Jacob Hauser, Yimu Bao, Shengqi Sang +3
Measurements can detect errors in a decohered quantum memory allowing active error correction to increase the memory time. Previous understanding of this mechanism has focused on e…
quant-ph2024
Approximate quantum error correcting codes from conformal field theory
Shengqi Sang, Timothy H. Hsieh, Yijian Zou
The low-energy subspace of a conformal field theory (CFT) can serve as a quantum error correcting code, with important consequences in holography and quantum gravity. We consider g…
quant-ph2024★ 34 cited
Stability of mixed-state quantum phases via finite Markov length
Shengqi Sang, Timothy H. Hsieh
For quantum phases of Hamiltonian ground states, the energy gap plays a central role in ensuring the stability of the phase as long as the gap remains finite. We propose Markov len…