Broadcasting of NPT entanglement in two qutrit systems
نویسندگان
چکیده
It is known that beyond $2 \otimes 2$ and 3$ dimensional quantum systems, Peres-Hordecki criterion no longer sufficient as an entanglement detection there are entangled states with both positive negative partial transpose (PPT NPT). Further, it also true all PPT bound states. However, in the class of NPT states, can exist well free All free/useful/distillable a part In this article, we ask question given state $3 \otimes3$ system resource, how much broadcast so resource still remains NPT. We have chosen first step to understand broadcasting higher systems. particular, find out range for Two parameter Class States (TPCS) Isotropic (IS). Interestingly, derivative process able locate existence absolute (ABPPT) system. Here implement strategy through approximate cloning operations.
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ژورنال
عنوان ژورنال: Pramana
سال: 2021
ISSN: ['0304-4289', '0973-7111']
DOI: https://doi.org/10.1007/s12043-021-02098-w