On bistochastic Kadison-Schwarz operators onM2(ℂ)
In this paper we describe bistochastic Kadison-Schawrz operators acting on M2(C). Such a description allows us to �nd positive, but not Kadison-Schwarz operators. Moreover, by means of that characterization we are able to construct Kadison-Schawrz operators, which are not completely positive.
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Institute of Physics Publishing (UK)
2013
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/30078/1/mfaa-JPCS%282013%29.pdf http://irep.iium.edu.my/30078/ http://iopscience.iop.org/1742-6596/435/1/012018/pdf/1742-6596_435_1_012018.pdf |
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| Summary: | In this paper we describe bistochastic Kadison-Schawrz operators acting on M2(C).
Such a description allows us to �nd positive, but not Kadison-Schwarz operators. Moreover, by
means of that characterization we are able to construct Kadison-Schawrz operators, which are
not completely positive. |
|---|