3 papers
quant-ph2026
Subsystem Quantum Error Correction for Noisy Quantum Metrology
Qiushi Liu, Sisi Zhou
Quantum error correction has been successfully applied to enhance the precision of parameter estimation in the presence of noise. Nonetheless, existing methods require a number of…
quant-ph2025
Heisenberg-Limited Quantum Metrology without Ancillae
Qiushi Liu, Yuxiang Yang
Extensive research has been dedicated to the asymptotic theory of quantum metrology, where the goal is to determine the ultimate precision limit of quantum channel estimation when…
quant-ph2024
Efficient tensor networks for control-enhanced quantum metrology
Qiushi Liu, Yuxiang Yang
Optimized quantum control can enhance the performance and noise resilience of quantum metrology. However, the optimization quickly becomes intractable when multiple control operati…