A Class of Linear Positive Maps in Matrix Algebras

Authors:
A. Kossakowski
Affiliations:
Institute of Physics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Toruń, Poland, e-mail: kossak@phys.uni.torun.pl
Venue:
Open Systems & Information Dynamics
Year:
2003

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Abstract

A class of linear positive, trace preserving maps in Mn is given in terms of affine maps in $$\mathop {\Cal R}\nolimits^{n^2 - 1}$$ which map the closed unit ball into itself.