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Harvesting asymmetric steering via non-identical detectors
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Paper
Harvesting asymmetric steering via non-identical detectors
2024
Overview
We investigate asymmetric steering harvesting phenomenon involving two non-identical inertial detectors with different energy gaps, which interact locally with vacuum massless scalar fields. Our study assumes that the energy gap of detector \\(B\\) exceeds that of detector \\(A\\). It is shown that \\(A B\\) steerability is bigger that \\(B A\\) steerability, implying that the observer with a small energy gap has more stronger steerability than the other one. We find that the energy gap difference can enlarge the harvesting-achievable range of \\(A B\\) steering, while it can also narrow the harvesting-achievable range of \\(B A\\) steering at the same time. In addition, the maximal steering asymmetry indicates the transformation between two-way steering and one-way steering in some cases, showing that \\(B A\\) steering suffers ``sudden death\" at the point of this parameter. These results suggest that asymmetric steering exhibits richer and more interesting properties than quantum entanglement harvested from vacuum quantum field.
Publisher
Cornell University Library, arXiv.org
Subject
