Verification of joint measurability using phase-space quasiprobability distributions
نویسندگان
چکیده
Measurement incompatibility is a distinguishing property of quantum physics and an essential resource for many information processing tasks. We introduce approach to verify the joint measurability measurements based on phase-space quasiprobability distributions. Our results, therefore, establish connection between two notions nonclassicality, namely negativity distributions measurement incompatibility. show how our can be applied study incompatibility-breaking channels derive sufficient conditions bosonic systems Gaussian channels. In particular, these provide useful tools investigating effects errors imperfections in practice. To illustrate method, we consider all classes single-mode that pure lossy with 50% or more losses break represented by non-negative Wigner functions, which includes set measurements.
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ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physreva.104.042212