Improvement on cyclic controlled teleportation by using a seven-qubit entangled state

2021 ◽  
Vol 53 (8) ◽  
Author(s):  
Vikram Verma ◽  
Dhiraj Yadav ◽  
Devendra Kumar Mishra
Keyword(s):  
Controlled Teleportation ◽  
Entangled State

CONTROLLED TELEPORTATION OF AN ARBITRARY THREE-QUBIT STATE THROUGH A GENUINE SIX-QUBIT ENTANGLED STATE AND BELL-STATE MEASUREMENTS

2011 ◽  
Vol 09 (02) ◽  
pp. 763-772 ◽  
Author(s):  
YI-YOU NIE ◽  
YUAN-HUA LI ◽  
JUN-CHANG LIU ◽  
MING-HUANG SANG
Keyword(s):  
Bell State ◽  
Qubit State ◽  
Controlled Teleportation ◽  
Entangled State ◽  
Bell State Measurements

We demonstrate that a genuine six-qubit entangled state introduced by Tapiador et al. [J. Phys. A42 (2009) 415301] can be used to realize the deterministic controlled teleportation of an arbitrary three-qubit state by performing only the Bell-state measurements.

scholarly journals The Controlled Teleportation of an Arbitrary Two-Atom Entangled State in Driven Cavity QED

2008 ◽  
Vol 48 (5) ◽  
pp. 1516-1522 ◽  
Author(s):  
Chuan-Jia Shan ◽  
Ji-Bing Liu ◽  
Tang-Kun Liu ◽  
Yan-Xia Huang ◽  
Hong Li
Keyword(s):  
Cavity Qed ◽  
Controlled Teleportation ◽  
Entangled State ◽  
Driven Cavity

Experimental realization of quantum controlled teleportation of arbitrary two-qubit state via a five-qubit entangled state

2021 ◽  
Author(s):  
Xiao-Fang Liu ◽  
Dong-Fen Li ◽  
Yun-Dan Zheng ◽  
Xiao-Long Yang ◽  
Jie Zhou ◽  
...  
Keyword(s):  
Density Matrix ◽  
Quantum State ◽  
Bell State ◽  
Third Party ◽  
Controlled Teleportation ◽  
Entangled State ◽  
Entanglement Measure ◽  
Experimental Realization ◽  
Operation Process ◽  
Photonic States

Abstract Quantum controlled teleportation is the transmission of the quantum state under the supervision of a third party. This paper presents a theoretical and experimental combination of an arbitrary two-qubit quantum controlled teleportation scheme. In the scheme, the sender Alice only needs to perform two Bell state measurements, and the receiver Bob can perform the appropriate unitary operation to reconstruct arbitrary two-qubit states under the control of the supervisor Charlie. We verified the operation process of the scheme on the IBM Quantum Experience platform and further checked the accuracy of the transmitted quantum state by performing quantum state tomography. Meanwhile, good fidelity is obtained by calculating the theoretical density matrix and the experimental density matrix. We also introduced a sequence of photonic states to analyze the possible intercept-replace-resend, intercept-measure-resend, and entanglement-measure-resend attacks on this scheme. The results proved that our scheme is highly secure.

TELEPORTATION AND CONTROLLED TELEPORTATION WITH MAXIMALLY FOUR-QUBIT ENTANGLEMENT QUANTUM STATES

2010 ◽  
Vol 24 (19) ◽  
pp. 2069-2076 ◽  
Author(s):  
XIN-WEI ZHA ◽  
HAI-YANG SONG
Keyword(s):  
Transformation Operator ◽  
Quantum States ◽  
Qubit State ◽  
Controlled Teleportation ◽  
Entangled State ◽  
Optimal Match ◽  
Multipartite Entangled State

Recently Paolo Facchi et al.15 presented a maximally multipartite entangled state (MMES). It is shown that some of these states can be utilized for perfect teleportation of arbitrary two-qubit systems and controlled teleportation of an arbitrary one-qubit state. Furthermore, the optimal match measuring basis are given by transformation operator for controlled teleportation.

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