3 papers
quant-ph2026
Full-Period Optical Phase Estimation with Heisenberg Scaling Using Displaced Squeezed States and Gaussian Measurements
Marco A. Rodríguez-García, Luis Medina-Dozal, Francisco E. Becerra
We propose two-stage optimized strategies for full-period optical phase estimation with single-mode Gaussian states and Gaussian measurements under a fixed energy constraint. In th…
quant-ph2024
Usefulness of Quantum Entanglement for Enhancing Precision in Frequency Estimation
Marco A. Rodríguez-García, Ruynet L. de Matos Filho, Pablo Barberis-Blostein
We investigate strategies for reaching the ultimate limit on the precision of frequency estimation when the number of probes used in each run of the experiment is fixed. That limit…
quant-ph2023
Adaptive Phase Estimation with Squeezed Vacuum Approaching the Quantum Limit
M. A. Rodríguez-García, F. E. Becerra
Phase estimation plays a central role in communications, sensing, and information processing. Quantum correlated states, such as squeezed states, enable phase estimation beyond the…