Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9498623 | Linear Algebra and its Applications | 2005 | 9 Pages |
Abstract
Certain trace inequalities related to matrix logarithm are shown. These results enable us to give a partial answer of the open problem conjectured by A.S. Holevo. That is, concavity of the auxiliary function which appears in the random coding exponent as the lower bound of the quantum reliability function for general quantum states is proven in the case of 0 ⩽ s ⩽ 1.
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory
Authors
Kenjiro Yanagi, Shigeru Furuichi, Ken Kuriyama,