Efficient many-party controlled teleportation of multiqubit quantum information via entanglement

Yang, Chui‐Ping; Chu, Shih‐I; Han, Siyuan

doi:10.1103/physreva.70.022329

Cited by 220 publications

(181 citation statements)

References 28 publications

Supporting

Mentioning

178

Contrasting

Unclassified

Order By: Relevance

“…It should be noted again that when the sender shares different channels with involving agents, any agent who is equipped with the capability of a two qubit operation can help the receiver adopt an appropriate unitary-reduction strategy [27][28][29][30][31] to restore the initial state. Therefore, terminal users will not need to worry about the availability of auxiliary qubits, multi qubit gates or other issues, bypassing the high-dimensional operation problem, which facilitates better physical realization.…”

Section: Discussion and Summarymentioning

confidence: 99%

“…For example, Wang et al [15] and Shi et al [11,25,26] have presented several multi-party QSTS schemes for sharing an arbitrary two-qubit state using Bell states as quantum resources. Very recently, several asymmetric schemes for five-party and multi-party quantum state sharing with maximally entangled states of two particles and three particles have been proposed [27][28][29][30].…”

mentioning

confidence: 99%

See 1 more Smart Citation

An efficient scheme for multi-party quantum state sharing via non-maximally entangled states

et al. 2012

View full text Add to dashboard Cite

We present a new scheme for investigating the usefulness of non-maximally entangled states for multi-party quantum state sharing in a simple and elegant manner. In our scheme, the sender, Alice shares n various probabilistic channels composed of non-maximally entangled states with n agents in a network. Our protocol involves only Bell-basis measurements, single qubit measurements, and a two-qubit unitary transformation operated by free optional agents. Our scheme is a more convenient realization because no other multipartite joint measurements are needed. Furthermore, in our scheme various probabilistic channels lessen the requirement for quantum channels, which makes it more practical for physical implementation. quantum state sharing, probabilistic channel, multi-particle state, two-particle entangled state Quantum secret sharing (QSS) is a method for creating a private key and dividing it between parties. It has potential applications ranging from quantum secure communication, quantum key distribution, and joint sharing of quantum money [1][2][3][4][5][6]. This research area covers classical secret sharing and quantum information sharing among multiple participants. The latter case was named "quantum state sharing" (QSTS) by Lance et al. [7]. The basic idea of QSTS in the multi-party case is that some information in a secret quantum state of a multi-qubit possessed by one person is distributed between that person, whom we call "Alice", and multiple remote recipients. This is done in such a way that it can be jointly reconstructed and shared only if all participants collaborate. In some sense, QSTS is equivalent to quantum-controlled teleportation. However, during the process of quantum teleportation, an unknown quantum state is transferred to a distant location without revealing any information about the state in the course of the transformation. For a general QSTS protocol, that information is not so restricted. The shared quantum states can be known or unknown in advance to the initial holder. In most QSTS protocols [8][9][10][11][12][13][14][15][16][17][18][19], entanglement is the main phenomenon used to share quantum information. So far, various entangled states have been extensively used in QSTS protocols, such as Bell states [7][8][9][10][11]

show abstract

Section: Discussion and Summarymentioning

confidence: 99%

mentioning

confidence: 99%

An efficient scheme for multi-party quantum state sharing via non-maximally entangled states

et al. 2012

View full text Add to dashboard Cite

show abstract

“…However, this scheme requires a large number of auxiliary qubits and measurements, which increases the cost of the protocol. Therefore, CT schemes in which each controller possesses only one qubit were proposed [28][29][30][31]. We now analyze these proposals from the controller's point of view.…”

Section: Revisiting Controlled Teleportation Schemes From the Comentioning

confidence: 99%

“…However, this scheme requires considerable auxiliary qubit resources when N is significantly large. In 2004, Yang et al proposed efficient many-party CT protocols to teleport N -qubit product states [28,29]. In 2007, Man et al constructed a genuine (2N + 1)-qubit entangled channel to perform controlled teleportation of an arbitrary N -qubit state controlled by one agent [30] and then generalized it to M controllers via M GHZ states and (N −M ) Einstein-Podolsky-Rosen (EPR) pairs [31].…”

Section: Introductionmentioning

confidence: 99%

Analysis ofN-qubit perfect controlled teleportation schemes from the controller's point of view

Ghose

2015

Phys. Rev. A

View full text Add to dashboard Cite

We quantitatively analyze and evaluate the controller's power in N -qubit controlled teleportation schemes. We calculate the minimum control power required to ensure the controller's authority such that the teleportation fidelity without the controller's permission is no more than the classical bound. We revisit several typical controlled teleportation schemes from the controller's point of view and evaluate the control power in these schemes. We find that for teleporting arbitrary Nqubit states, each controller should control at least N bits of useful information to ensure his/her authority over the protocol. We also discuss the general rules that must be satisfied by controlled teleportation schemes to ensure both teleportation fidelity and control power.

show abstract

“…Yan and Wang proposed the controlled teleportation of both one-qubit and twoqubit unknown quantum states [9]. Yang et al put forward controlled teleportation protocol of teleporting multiqubit states [10]. Gao et al presented a protocol for controlled and secure direct communication using GHZ state [11].…”

Section: Introductionmentioning

confidence: 99%

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

Shi

Zhou

Wei

et al. 2018

Advances in Mathematical Physics

View full text Add to dashboard Cite

We put forward an efficient quantum controlled teleportation scheme, in which arbitrary two-qubit state is transmitted from the sender to the remote receiver via two entangled states under the control of the supervisor. In this paper, we use the combination of one two-qubit entangled state and one three-qubit entangled state as quantum channel for achieving the transmission of unknown quantum states. We present the concrete implementation processes of this scheme. Furthermore, we calculate the successful probability and the amount of classical information of our protocol.

show abstract

Efficient many-party controlled teleportation of multiqubit quantum information via entanglement

Cited by 220 publications

References 28 publications

An efficient scheme for multi-party quantum state sharing via non-maximally entangled states

An efficient scheme for multi-party quantum state sharing via non-maximally entangled states

Analysis ofN-qubit perfect controlled teleportation schemes from the controller's point of view

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

Contact Info

Product

Resources

About