INVESTIGADORES
SPARACINO Javier
artículos
Título:
Natural Metric for Quantum Information Theory
Autor/es:
P. W. LAMBERTI; M. PORTESI; J. SPARACINO
Revista:
INTERNATIONAL JOURNAL OF QUANTUM INFORMATION
Editorial:
WORLD SCIENTIFIC PUBL CO PTE LTD
Referencias:
Lugar: Singapore; Año: 2009 p. 1009 - 1019
ISSN:
0219-7499
Resumen:
We propose a very natural metric between quantum states. This proposal has two basic ingredients: entropy and purification. The metric is defined as the square root of the entropy of the average of representative purifications of the concomitant mixed states. Some basic properties are studied and its relation with other distances is investigated.
