Distributed quantum multiple-phase estimation using fewer photons
Donghyun Kim, Seongjin Hong, Yong‐Su Kim, Yosep Kim, Seung-Woo Lee, Raphael C. Pooser, Kyunghwan Oh, Su‐Yong Lee, Changhyoup Lee, Hyang‐Tag Lim · 2025
We show that by using N-photon two-mode polarization-entangled states and beam splitter networks, the Heisenberg scaling can be achieved in distributed quantum multiple-phase estimation, even with fewer photons than the number of phases.