scholarly journals Bidirectional quantum teleportation of arbitrary single qubit state based on the channel matrix parameter

2020 ◽  
Author(s):  
Achmad Fatich al Qodri ◽  
Agus Purwanto ◽  
Dwi Januriyanto
Keyword(s):  
Quantum Teleportation ◽  
Qubit State ◽  
Channel Matrix ◽  
Single Qubit ◽  
Bidirectional Quantum Teleportation ◽  
Matrix Parameter

Asymmetric bidirectional quantum teleportation via six-qubit partially entangled state

2021 ◽  
pp. 2150208
Author(s):  
Jinwei Wang ◽  
Liping Huang
Keyword(s):  
Quantum Channel ◽  
Quantum Teleportation ◽  
Bell State ◽  
Qubit State ◽  
Entangled State ◽  
Controlled Quantum Teleportation ◽  
Single Qubit ◽  
Bidirectional Quantum Teleportation ◽  
Bell State Measurements ◽  
Partially Entangled State

In this paper, an asymmetric bidirectional controlled quantum teleportation via a six-qubit partially entangled state is given, in which Alice wants to transmit a two-qubit entangled state to Bob and Bob wants to transmit a single-qubit state to Alice on the same time. Although the six-qubit state as quantum channel is partially entangled, the teleportation is implemented deterministically. Furthermore, only Bell-state measurements, single-qubit measurements and some unitary operations are needed in the scheme.

Cyclic quantum teleportation via GHZ-like state

2020 ◽  
pp. 2050333
Author(s):  
Vikram Verma
Keyword(s):  
Quantum Teleportation ◽  
The Other ◽  
Single Qubit ◽  
Bidirectional Quantum Teleportation ◽  
Other Hand ◽  
Qubit States

Following the work of Chen et al. [Quantum Inf. Process. 16, 201 (2017)] and Zhang [Mod. Phys. Lett. A 34, 1950290 (2019)], we propose a scheme for cyclic quantum teleportation (CYQT) in which three participants Alice, Bob and Charlie can teleport three arbitrary single-qubit information states cyclically among themselves by using GHZ-like states. Chen et al. and Zhang proposed schemes for CYQT and bidirectional quantum teleportation (BQT) involving three participants, respectively. In the scheme of Chen et al., the quantum teleportation (QT) can be realized successfully between any two participants without the help of third participants and in Zhang’s scheme, two unknown single-qubit states are teleported bidirectionally between two participants with the help of a third participant. On the other hand, in our proposed scheme, all the three participants are controller as well as sender and receiver. The teleportation processes Alice [Formula: see text] Bob, Bob [Formula: see text] Charlie and Charlie [Formula: see text] Alice are controlled by Charlie, Alice and Bob, respectively, and hence the CYQT could not be realized successfully without the cooperation of all three participants. If any one participant denies to cooperate with other two participants, then the CYQT cannot be realized successfully.

Multi-hop teleportation of N-qubit state via Bell states

2021 ◽  
Vol 36 (08) ◽  
pp. 2150053
Author(s):  
Negin Fatahi
Keyword(s):  
Quantum Teleportation ◽  
Large Scale ◽  
Quantum States ◽  
Qubit State ◽  
Bell States ◽  
Quantum Channels ◽  
Single Qubit ◽  
Qubit States

Multi-hop teleportation is a quantum teleportation scheme for transferring quantum states on a large scale. In this paper, a new multi-hop teleportation protocol is investigated for transferring arbitrary N-qubit states between M-neighbor nodes. In this scheme, intermediate nodes are connected with each other by symmetric entangled Bell states as quantum channels. First, one-hop teleportation of single-qubit, two-qubit and N-qubit states are introduced, then this method is generalized to two-hop and multi-hop teleportation for N-qubit. Also, we calculate the efficiency of this scheme.

Quantum Teleportation of Five-qubit State

2017 ◽  
Vol 56 (9) ◽  
pp. 2710-2715 ◽  
Author(s):  
Min Li ◽  
Nan Zhao ◽  
Nan Chen ◽  
Chang-hua Zhu ◽  
Chang-xing Pei
Keyword(s):  
Quantum Teleportation ◽  
Qubit State
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