In:
Open Systems & Information Dynamics, World Scientific Pub Co Pte Ltd, Vol. 11, No. 01 ( 2004-03), p. 3-42
Abstract:
We investigate the space of quantum operations, as well as the larger space of maps which are positive, but not completely positive. A constructive criterion for decomposability is presented. A certain class of unistochastic operations, determined by unitary matrices of extended dimensionality, is defined and analyzed. Using the concept of the dynamical matrix and the Jamiołkowski isomorphism we explore the relation between the set of quantum operations (dynamics) and the set of density matrices acting on an extended Hilbert space (kinematics). An analogous relation is established between the classical maps and an extended space of the discrete probability distributions.
Type of Medium:
Online Resource
ISSN:
1230-1612
,
1793-7191
DOI:
10.1023/B:OPSY.0000024753.05661.c2
Language:
English
Publisher:
World Scientific Pub Co Pte Ltd
Publication Date:
2004
detail.hit.zdb_id:
2008114-5
SSG:
11
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