Email this article Spin Polarization-Scaling Quantum Maps and Channels
- Authors: Filippov S.N.1, Magadov K.Y.1
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Affiliations:
- Moscow Institute of Physics and Technology
- Issue: Vol 39, No 1 (2018)
- Pages: 65-70
- Section: Article
- URL: https://journals.rcsi.science/1995-0802/article/view/200870
- DOI: https://doi.org/10.1134/S1995080218010109
- ID: 200870
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Abstract
We introduce a spin polarization-scaling map for spin-j particles, whose physical meaning is the decrease of spin polarization along three mutually orthogonal axes. We find conditions on three scaling parameters under which the map is positive, completely positive, entanglement breaking, 2-tensor-stable positive, and 2-locally entanglement annihilating. The results are specified for maps on spin-1 particles. The difference from the case of spin-1/2 particles is emphasized.
About the authors
S. N. Filippov
Moscow Institute of Physics and Technology
Author for correspondence.
Email: sergey.filippov@phystech.edu
Russian Federation, Institutskii per. 9, Dolgoprudny, Moscow oblast, 141700
K. Yu. Magadov
Moscow Institute of Physics and Technology
Email: sergey.filippov@phystech.edu
Russian Federation, Institutskii per. 9, Dolgoprudny, Moscow oblast, 141700
