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Quantum f-Divergences in von Neumann Algebras
- Reversibility of Quantum Operations
Engelsk
Bogcover for Quantum f-Divergences in von Neumann Algebras af Fumio Hiai, 9789813341982
Specifikationer
Sprog:
Engelsk
Sider:
194
ISBN-13:
9789813341982
Indbinding:
Hardback
ISBN-10:
981334198X
Udg. Dato:
27 jan 2021
Størrelse i cm:
16,0 x 24,1 x 2,2
Oplagsdato:
27 jan 2021
Forfatter(e):

Quantum f-Divergences in von Neumann Algebras

- Reversibility of Quantum Operations
Engelsk
Hardback 2021
Format:

Bog beskrivelse
Relative entropy has played a significant role in various fields of mathematics and physics as the quantum version of the Kullback-Leibler divergence in classical theory. Many variations of relative entropy have been introduced so far with applications to quantum information and related subjects. Typical examples are three different classes, called the standard, the maximal, and the measured f-divergences, all of which are defined in terms of (operator) convex functions f on (0,∞) and have respective mathematical and information theoretical backgrounds. The α-Rényi relative entropy and its new version called the sandwiched α-Rényi relative entropy have also been useful in recent developments of quantum information.

In the first half of this monograph, the different types of quantum f-divergences and the Rényi-type divergences mentioned above in the general von Neumann algebra setting are presented for study. While quantum information has been developing mostly in the finite-dimensional setting, it is widely believed that von Neumann algebras provide the most suitable framework in studying quantum information and related subjects. Thus, the advance of quantum divergences in von Neumann algebras will be beneficial for further development of quantum information. 

Quantum divergences are functions of two states (or more generally, two positive linear functionals) on a quantum system and measure the difference between the two states. They are often utilized to address such problems as state discrimination, error correction, and reversibility of quantum operations. In the second half of the monograph, the reversibility/sufficiency theory for quantum operations (quantum channels) between von Neumann algebras via quantum f-divergences is explained, thus extending and strengthening Petz'' previous work.

For the convenience of the reader, an appendix including concise accounts of von Neumann algebras is provided.
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Specifikationer
Sprog:
Engelsk
Sider:
194
ISBN-13:
9789813341982
Indbinding:
Hardback
ISBN-10:
981334198X
Udg. Dato:
27 jan 2021
Størrelse i cm:
16,0 x 24,1 x 2,2
Oplagsdato:
27 jan 2021
Forfatter(e):
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