2 papers
quant-ph2026
Small correlation is sufficient for optimal noisy quantum metrology
Chao Yin, Victor V. Albert, Sisi Zhou
We propose a class of metrological resource states whose quantum Fisher information scales optimally in both system size and noise rate. In these states, qubits are partitioned int…
quant-ph2025
Stabilizer codes for Heisenberg-limited many-body Hamiltonian estimation
Santanu Bosu Antu, Sisi Zhou
Estimating many-body Hamiltonians has wide applications in quantum technology. By allowing coherent evolution of quantum systems and entanglement across multiple probes, the precis…