Alexander S. Holevo's Researches in Quantum Information Theory in 20th Century

TL;DR

This paper reviews Alexander S. Holevo's significant contributions to quantum information theory in the 20th century, focusing on classical-quantum channel coding, quantum estimation methods, and group covariant approaches.

Contribution

It provides a comprehensive overview of Holevo's pioneering work across three key areas in quantum information theory during the 20th century.

Findings

Analysis of classical-quantum channel coding techniques

Insights into quantum estimation with Cramér-Rao approach

Discussion of quantum estimation using group covariant methods

Abstract

This paper reviews Holevo's contributions to quantum information theory during the 20 century. At that time, he mainly studied three topics, classical-quantum channel coding, quantum estimation with Cramero-Rao approach, and quantum estimation with the group covariant approach. This paper addresses these three topics.