Study On Monotonicity Of Quantum Information

Quantum information is the application of quantum mechanics to information science and technology,which provides a new principle,method and method for the development of information science.In quantum information processing,the carrier of information is a quantum state,which can be controlled by the micro-system quantum state to complete the logic operation.Wigner and Yanase put forward the concept of Skew information when studying quantum measurement theory.In this paper,the monotonicity of Skew information in 3-dimensional Hilbert space is studied by using the knowledge of trace inequality and matrix inequality.This paper is divided into two parts,the specific structure is as follows:The first part is the introduction,which mainly introduces the research back-ground of quantum information,the development process of Skew information,the knowledge of matrix inequality and C*-Algebras.The second part first introduces the selection of Skew information in the two-dimensional Hilbert space.Secondly,we are in the 3-dimensional Hilbert space Ej ? M3(C),j=1,2,…,n.Satisfy:...