2012/09/28 by Ryo Okamoto, Minako Iefuji, Satoshi Oyama +4 · 3 citations
Computer Science · Physics and Astronomy · #Computer science #Consistency (knowledge bases) #Mechanical and Optical Resonators #Metrology #Photon #Physics #Polarization (electrochemistry) #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum information #Quantum mechanics #Quantum metrology #Quantum network #Quantum state #Statistical physics #quant-ph
paper · pdf · doi:10.1103/physrevlett.109.130404
published as Phys. Rev. Lett. 109, 130404 (2012) · 5pages, 4figures
openalex publication_date 2012/09/28 · arxiv created 2012/10/11 · arxiv updated 2015/06/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The first experimental demonstration of an adaptive quantum state estimation (AQSE) is reported. The strong consistency and asymptotic efficiency of AQSE have been mathematically proven [A. Fujiwara, J. Phys. A 39, 12489 (2006)]. In this Letter, the angle of linear polarization of single photons, the phase parameter between the right and the left circularly polarization, is estimated using AQSE, and the strong consistency and asymptotic efficiency are experimentally verified. AQSE will provide a general useful method in both quantum information processing and metrology.