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arXiv · 2405.06222

Imaginarity of quantum channels: Refinement and Alternative

Xiangyu Chen·Qiang Lei
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Abstract

In this paper, we introduce the framework for quantifying the imaginarity of quantum channels. Besides, an alternative framework is given together to simplify the process of verifying the condition. We present three imaginarity measures of quantum channels based on the robustness, the trace norm, and the entropy, respectively. Some properties are also given.

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Xiangyu Chen, Qiang Lei. 2024-05-10. Imaginarity of quantum channels: Refinement and Alternative. https://doi.org/10.1016/j.physleta.2024.130129

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