Geometry of phase-covariant qubit channels
نویسندگان
چکیده
Abstract We analyze the geometry on space of non-unital phase-covariant qubit maps. Using corresponding Choi-Jamiołkowski states, we derive Hilbert-Schmidt line and volume elements using channel eigenvalues together with parameter that characterizes non-unitality. find shapes analytically compute volumes channels, in particular entanglement breaking obtainable time-local generators.
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ژورنال
عنوان ژورنال: Journal of physics communications
سال: 2023
ISSN: ['2399-6528']
DOI: https://doi.org/10.1088/2399-6528/ace0f4