Multi-hop teleportation based on W state and EPR pairs

Abstract

Multi-hop teleportation has significant value due to long-distance delivery of quantum information. Many studies about multi-hop teleportation are based on Bell pairs, partially entangled pairs or W state. The possibility of multi-hop teleportation constituted by partially entangled pairs relates to the number of nodes. The possibility of multi-hop teleportation constituted by double W states is 4 9 n after n-hop teleportation. In this paper, a multi-hop teleportation scheme based on W state and EPR pairs is presented and proved. The successful possibility of quantum information transmitted hop by hop through intermediate nodes is deduced. The possibility of successful transmission is 2 3 n after n-hop teleportation.

Cyclic deterministic bidirectional quantum controlled teleportation with maximally seven-qubit entangled state

“…Any one of the three parties can be the controller, and BQCT can be realized between the other two parties. To date, a number of articles have studied the BQCT scheme based on the principle of entanglement swapping [28][29][30][31][32][33][34][35]. However, none have achieved the role transition between controller and receiver in such a complex seven-qubit entangled state.…”

Multiparty probabilistic controlled joint remote preparation of an arbitrary <italic>m</italic>-qudit equatorial state with a pure entangled quantum channel

“…网络中不同节点间量子态的远程传送是远程量子 通信的重要任务之一 [1][2][3][4][5][6][7][8][9][10][11][12] . 基于预先共享量子纠缠信 道非定域相关性, 量子隐形传态可以完成任意未知量 子态的远程传送 [13][14][15][16][17][18][19][20][21][22][23][24][25] . 与量子隐形传态不同, 量子态 远程制备中发送方已知需制备量子态信息 [26][27][28] .…”

Simultaneous Asymmetric Quantum Remote State Preparation Scheme in Noisy Environments

“…It is a technique for transfer of unknown quantum information from one location to a distant location through a previously shared entanglement between the sender and the receiver. Since then, a series of modified quantum teleportation protocols such as controlled teleportation [2][3][4][5][6][7][8][9], bi-directional teleportation [10][11][12][13][14][15][16], probabilistic teleportation [17][18][19][20][21][22], cyclic teleportation [23][24][25][26][27][28], multi-hop teleportation [29][30][31][32][33] and so on were developed in course of the last three decades which are applicable to a very wide variety of quantum states.…”