papers
Publications (3)
quant-ph2024
Locality vs Quantum Codes
Samuel Dai, Ray Li
This paper proves optimal tradeoffs between the locality and parameters of quantum error-correcting codes. Quantum codes give a promising avenue towards quantum fault tolerance, bu…
quant-ph2025
Optimal Locality and Parameter Tradeoffs for Subsystem Codes
Samuel Dai, Ray Li, Eugene Tang
We study the tradeoffs between the locality and parameters of subsystem codes. We prove lower bounds on both the number and lengths of interactions in any -dimensional embedding…
quant-ph2026
Entanglement Detection by Approximate Entanglement Witnesses
Samuel Dai, Ning Bao
The problem of determining whether a given quantum state is separable is known to be computationally difficult. We develop an approach to this problem based on approximations of co…