Quantum Controlled Teleportation of Arbitrary Two-Qubit State via Entangled States

Shi, Lei; Zhou, Kaihang; Wei, Jiahua; Zhu, Yu; Zhu, Qiuming

doi:10.1155/2018/4575438

Cited by 9 publications

(7 citation statements)

References 10 publications

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“…Finally, let us calculate the success probability and intrinsic efficiency of both schemes. The definition of success probability [67,71] is…”

Section: Contrastive Analysesmentioning

confidence: 99%

Convenient quantum controlled teleportation of two-qubit pure state with seven-qubit entangled state

Ma¹

2023

Laser Phys. Lett.

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Based on a seven-qubit entangled state, Chen et al (2020 Int. J. Theor. Phys. 59 1402) presented a scheme for controlled quantum teleportation. Using the same quantum channel state, we put forward a new scheme in which the quantum information sender can also transmit a Bell state to receiver under the agreement and assist of the controller. The comparison with Chen et al’s scheme is made and reveals its distinct advantage of reducing the classical resource consumption and increasing the intrinsic efficiency as well as degrading the complexity of necessary operations.

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“…Finally, let us calculate the success probability and intrinsic efficiency of both schemes. The definition of success probability [67,71] is…”

Section: Contrastive Analysesmentioning

confidence: 99%

Convenient quantum controlled teleportation of two-qubit pure state with seven-qubit entangled state

Ma¹

2023

Laser Phys. Lett.

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“…In teleportation, both the sender and receiver do not know the quantum state being transmitted in advance. In much research on quantum controlled teleportation, it has been realized that one-qubit unknown states can be transmitted by using the three-particle entangled states as quantum channels [17].…”

Section: Quantum Teleportationmentioning

confidence: 99%

Quantum technology’s role in cybersecurity

Teodoraș¹,

Popovici²,

Suciu³

et al. 2023

Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies XI

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In the context of the development of quantum technology, most asymmetric encryption algorithms managed to be broken using Shor's algorithm, while symmetric encryption algorithms, such as AES-256, are believed to be unbroken for the moment, Grover's algorithm has been able only to reduce AES brute force attack time to its square root. This paper proposes to present how Quantum technology can affect current security algorithms and analyze how it can be used to improve our data protection by developing new algorithms. Quantum cryptography alongside Quantum key distribution could be a deal-breaker by using new encryption algorithms and providing new solutions to different cryptographic tasks that are known to be impossible by using normal computers. In the end, it will be discussed how the concept of quantum teleportation could provide new, faster, and much more secure solutions in telecommunication compared with the ones based on radio technologies.

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“…Since Bennet [9] proposed the concept of quantum teleportation (QT) in 1993, the quantum teleportation has been extensively studied, thus quite a lot of improved teleportation schemes have been proposed, such as quantum controlled teleportation (QCT), [10][11][12][13][14] quantum information splitting (QIS), [15,16] bidirectional quantum controlled teleportation (BQCT), [17,18] and hierarchical quantum teleportation (HQT), [19] etc. The most significant difference between the quantum controlled teleportation and the quantum teleportation lies in the fact that the former has a legitimate supervisor, and the communication process can only achieve the transmission of information between the two communicating parties under the supervisor's consent.…”

Section: Introductionmentioning

confidence: 99%

“…In 2017, Zang et al [13] proposed a scheme by using a six-qubit cluster state as quantum channel to realize two different QCT schemes, namely, three-party and fourparty communication, and the schemes were finally found by comparison to increase the security of the information transmission with the increase of the controlling party, but the operation of reconstructing quantum state is more complicated. In 2018, Zhou et al [14] proposed that the combination of twoqubit cluster state and three-qubit cluster state is used as a quantum channel to achieve an arbitrary two-qubit QCT, and the scheme is used to calculate the success probability of the communication process with the classical amount of information. In 2020, Li et al [21] proposed a QCT scheme by using a seven-qubit entangled state as quantum channel to realize a Bell state, and they used decoy photons to demonstrate that the scheme has high security.…”

Section: Introductionmentioning

confidence: 99%

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

Liu¹,

Li²,

Zheng³

et al. 2022

Chinese Phys. B

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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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Quantum Controlled Teleportation of Arbitrary Two-Qubit State via Entangled States

Cited by 9 publications

References 10 publications

Convenient quantum controlled teleportation of two-qubit pure state with seven-qubit entangled state

Convenient quantum controlled teleportation of two-qubit pure state with seven-qubit entangled state

Quantum technology’s role in cybersecurity

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

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