학술저널
THE MATRIX GEOMETRIC MEANS UNDER PARTIAL TRACE
- 충청수학회
- Journal of the Chungcheong Mathematical Society
- Volume 30, No. 1
-
2017.0221 - 29 (9 pages)
- 4
We review a partial trace alternatively defined by the composition of positive linear maps, and see how the partial trace acts on the matrix geometric means. We also study the quantum Tsallis relative entropy under partial trace related with the fidelity.
1. Introduction
2. Geometric means
3. Partial trace
4. Entropy and fidelity under partial trace
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