A universal protocol for bidirectional controlled teleportation with network coding

Autor:	Meng-Yao He, Song-Ya Ma, Kun-Peng Kang
Rok vydání:	2021
Předmět:	Physics and Astronomy (miscellaneous) Broadcast channels Computer science Control theory Linear network coding Data_CODINGANDINFORMATIONTHEORY State (computer science) Hardware_ARITHMETICANDLOGICSTRUCTURES General expression Topology Teleportation Protocol (object-oriented programming)
Zdroj:	Communications in Theoretical Physics. 73:105104
ISSN:	1572-9494 0253-6102
Popis:	We investigate the bidirectional teleportation in a fair and efficient manner. Two explicit protocols are put forward to realize bidirectional teleportation with a controller. One is a symmetric protocol for two-qubit states. The other is an asymmetric protocol for single- and two-qubit states. Then we devise a universal protocol for arbitrary $n_1$- and $n_2$-qubit states via a $(2n_1+2n_2+1)$-qubit entangled state, where $n_1\leq n_2$. The receiver only needs to perform the single-qubit recovery operation which is derived by a general expression. Moreover, $(2n_1+1)$-bit classical communication cost can be saved at the controller's broadcast channel by using the technology of network coding.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::81fda3a84d843320d7ce3a17a4440f9a https://doi.org/10.1088/1572-9494/ac1168 Zobrazit plný text záznamu