Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/7353
Title: | Broadcasting of quantum correlations in qubit-qudit systems |
Authors: | Rounak, Mundra Chatterjee, Sourav Patel, Dhrumil +2 Co-Authors |
Issue Date: | 18-Oct-2019 |
Publisher: | American Physical Society |
Citation: | Physical Review A, 2019 ,Vol.100, p042319 |
Abstract: | Quantum mechanical properties like entanglement, discord and coherence act as fundamental resources in various quantum information processing tasks. Consequently, generating more resources from a few, typically termed as broadcasting is a task of utmost significance. One such strategy of broadcasting is through the application of cloning machines. In this article, broadcasting of quantum resources beyond 2⊗2 systems is investigated. In particular, in 2⊗3 dimension, a class of states not useful for broadcasting of entanglement is characterized for a choice of optimal universal Heisenberg cloning machine. The broadcasting ranges for maximally entangled mixed states (MEMS) and two parameter class of states (TPCS) are obtained to exemplify our protocol. A significant derivative of the protocol is the generation of entangled states with positive partial transpose in 3⊗3 dimension and states which are absolutely separable in 2⊗2 dimension. Moving beyond entanglement, in 2⊗d dimension, the impossibility to optimally broadcast quantum correlations beyond entanglement (QCsbE) (discord) and quantum coherence ( l1 -norm) is established. However, some significant illustrations are provided to highlight that non-optimal broadcasting of QCsbE and coherence are still possible. |
Description: | Open Access |
URI: | http://hdl.handle.net/2289/7353 |
ISSN: | 2469-9926 2469-9934 (online) |
Alternative Location: | https://arxiv.org/abs/1807.11002 https://ui.adsabs.harvard.edu/abs/2018arXiv180711002M/abstract https://doi.org/10.1103/PhysRevA.100.042319 |
Copyright: | 2019 American Physical Society |
Appears in Collections: | Research Papers (LAMP) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2019_Phys Rev A_Vol.100_p042319.pdf | Open Access | 1.71 MB | Adobe PDF | View/Open |
Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.