Quantum measurement for state generation and information amplification(本文)
咲 田中 · Institutional Repositories DataBase (IRDB) · 2014
The theory of quantum measurement is an important element for quantum computation.In this work, I discuss quantum measurement in the quantum information technologies with some results of my doctor research.I have the following two main achievements: 1. proposal and analysis on improved control scheme of adaptive measurement for state preparation; CONTENTS iii 4.1.2Weak value as an expected value . . . . . . . . . . . . . .4.2 WVA with full-order calculation . . . . . . . . . . . . . . . . . .4.2.1 Review of WVA experiment with Sagnac interferometer .4.2.2Full-order calculation to analyze the experiment [58] based on wave optics theory . . . . . . . . . . . . . . . . . . . .4.2.3WVA on the two-level measured system . . . . . . . . . .4.3 Information change by the weak value amplification . . . . . . .4.3.1The state transition through the AAV weak measurement 4.3.2SLD-Fisher information and weak value . . . . . . . . . .4.3.3Evaluation of the post-selection with SLD-Fisher information . . . . . . . . . . . . . .