Quantum controlled teleportation when only the sender knows the partially entangled state

2018 ◽  
Author(s):  
Jiahua Wei ◽  
TingTing Zhang ◽  
Wei Guo ◽  
Xunjun Meng ◽  
Lei Shi ◽  
...  
Keyword(s):  
Controlled Teleportation ◽  
Entangled State ◽  
Partially 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.

QUANTUM CIRCUITS FOR PROBABILISTIC ENTANGLEMENT TELEPORTATION VIA A PARTIALLY ENTANGLED PAIR

2007 ◽  
Vol 05 (05) ◽  
pp. 717-728 ◽  
Author(s):  
XIU-BO CHEN ◽  
QIAO-YAN WEN ◽  
FU-CHEN ZHU
Keyword(s):  
Quantum Circuit ◽  
The Other ◽  
Quantum Circuits ◽  
Entangled State ◽  
Practical Realization ◽  
Entanglement Teleportation ◽  
Probabilistic Teleportation ◽  
Partially Entangled State ◽  
Positive Operator Valued Measure ◽  
Many Particles

It deserves mentioning that the quantum circuit, i.e. quantum logic network, is essential to the practical realization of teleportation in experiment. Using only one partially entangled pair, we first propose two novel strategies for probabilistically teleporting any partially entangled state of a bipartite system. The feature of the present protocol is to weaken the requirement for the quantum channel, and also to cut down the number of entangled particles initially shared by the sender and receiver. On the other hand, we explicitly construct the generalized measurement described by the positive operator-valued measure (POVM). Two kinds of efficient quantum circuits for implementing the teleportation are offered. In addition, we generalize the two-particle probabilistic teleportation to the system of many particles.

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.

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