Quantum Teleportation Scheme Research Articles

A new scheme of quantum teleportation using highly entangled brown et al. state: an IBM quantum experience

Quantum teleportation is a secure way to transfer an unknown message using a known channel implementing a simple and efficient protocol. Here, we achieve three-qubit and four-qubit quantum teleportation using a highly entangled Brown et al. state. We simulate the same using the IBM quantum experience platform. Furthermore, we extend this concept to generalize N-qubit teleportation which comprises of two cases, N being odd and even. The results are verified after designing the quantum circuits and simulating using the quantum simulator.

Cyclic quantum teleportation of an unknown multi-particle high-dimension state

In this paper, via 12-particle entangled states as quantum channels, two schemes for cyclic quantum teleportation are proposed by using two different measurement methods, one is the Bell state measurement, the other is single-particle measurement. Besides, these schemes can be generalized to realize the probabilistic teleportation of an unknown multi-particle high-dimension state. Furthermore, feasibility for the schemes and some conclusions are discussed at the end of this paper.

Bidirectional Quantum Teleportation by Using a Four-Qubit GHZ State and Two Bell States

In this paper, a theoretical scheme for bidirectional quantum teleportation by using a four-qubit GHZ state and two Bell states as a quantum channel is proposed. In this scheme, two arbitrary single-qubit quantum states and an unknown three-qubit state can be mutually transmitted between the two communication participants Alice and Bob. The quantum state information can be transmitted if Alice performs four single-qubit measurement operations on her qubits and Bob carries out a four-qubit joint measurement on his qubits, respectively. Then both Alice and Bob can reconstruct the target quantum state by means of appropriate unitary operations. Then we take comparisons with the other bidirectional quantum teleportation protocols in five aspects of quantum information bits transmitted, necessary operations, consumption of quantum resource, consumption of classical resource and intrinsic efficiency. Furthermore, we use channel authentication method to ensure the channel security and prove that our protocol can withstand four attack scenarios. It is concluded that our scheme has significant advantages of more qubits number transmitted, higher intrinsic efficiency and high security.

Information hiding method based on quantum image by using Bell states

In this paper, we propose a novel information hiding method based on the NEQR quantum image and Bell states. We hide the secret information in the NEQR quantum image. The NEQR quantum image and the secret information are transferred to the recipient by using the quantum teleportation scheme. The recipient not only gets the secret information, but also holds the quantum image after one measurement. Our method can extract $$ m $$ secret bits after one measurement, while LSQb method can extract one secret bit.

Quantum teleportation with infinite reference-frame uncertainty

We present two new schemes for quantum teleportation between parties whose local reference frames are misaligned by the action of a compact Lie group G. These schemes require no prior alignment of reference frames and are unaffected by arbitrary changes in reference frame alignment during execution, suiting them to situations of rapid reference frame drift. Our tight scheme yields improved purity compared to standard teleportation, in some cases substantially --- this includes the case of qubit teleportation under arbitrary SU(2) reference frame uncertainty--- while communicating no information about either party's reference frame alignment at any time. Our perfect scheme performs perfect teleportation, but does communicate some reference frame information. The mathematical foundation of these schemes is a unitary error basis permuted up to a phase by the conjugation action of a finite subgroup of G.

Hierarchical controlled quantum teleportation

This paper describes a hierarchical controlled quantum teleportation scheme of arbitrary two-qubit based on an eight-particle maximum entanglement state among four parties, one sender and three receivers. In order to prevent the infidelity of the receivers, secret state will be purposefully split and sent to the three receivers. According to the noncloning theorem, only one of the three receivers can recover secret state and the high authorized receiver that recovers the information only requires the cooperation of one of the remaining two receivers. On the contrary, the low authorized party that recovers the secret state requires the cooperation of all remaining receivers.

A new kind of flexible quantum teleportation of an arbitrary multi-qubit state by multi-walker quantum walks

Quantum walks have emerged as an interesting approach to implementing quantum information processing task in recent years. In this work, we take advantage of the properties of quantum walks to design a novel kind of flexible and conclusive quantum teleportation scheme of multiple arbitrary qubits. First, two-walker quantum walks on three types of quantum structures, the line, the cycle and two-vertice complete graph with loops, are utilized to accomplish the teleportation of an arbitrary 2-qubit state. Second, without loss of generality, a generalization for teleporting an arbitrary N-qubit state is also shown by N-walker quantum walks on two-vertice complete graph with loops. Our scheme has two merits. (i) Three different quantum-walk structures can be used to teleport an arbitrary N-qubit state, which means that one can implement the scheme flexibly, depending on the concrete experimental environment. (ii) The prior entangled state is not necessarily prepared, as multiple-walker quantum walks may contain entanglement. In addition, the single-particle projective measurement and single-qubit gate are required, rather than a joint measurement and controlled-NOT gate, which will possibly simplify experimental realizations of this scheme. This work stimulates us to explore more potential applications of multi-walker quantum walks.

Cyclic Controlled Quantum Teleportation Using Three-Dimensional Hyper-Entangled State

We propose the scheme for cyclic controlled symmetry quantum teleportation by using one three-dimensional hyper-entangled state as the quantum channel. In our scheme, three distant parties, Alice, Bob and Charlie can simultaneously obtain the desired single-qutrit states. We also propose the scheme for cyclic controlled asymmetry quantum teleportation by using one three-dimensional hyper-entangled state as the quantum channel. Three-dimensional controlled-not operation, three-dimensional Bell-state measurement, three-dimensional Hadamard operation, three-dimensional projective measurement and three-dimensional unitary transformation are included.

Circular Controlled Quantum Teleportation by a Genuine Seven-qubit Entangled State

A scheme of circular controlled quantum teleportation, which is a novel version of bidirectional controlled quantum teleportation, is proposed using a specific genuine seven-qubit entangled state as quantum channel, and then it is generalized to the scene with a general genuine seven-qubit entangled state as channel. This means that with the control of the supervisor Daniel while Alice teleportates an unknown qubit state to Bob, Bob can also teleportate an unknown qubit state to Charlie and Charlie can also teleportate an unknown qubit state to Alice circularly, simultaneously. Compared with the BCQT schemes proposed before, the intrinsic efficiency of our scheme is optimal.

Probabilistic Resumable Quantum Teleportation of a Two-Qubit Entangled State.

We explicitly present a generalized quantum teleportation of a two-qubit entangled state protocol, which uses two pairs of partially entangled particles as quantum channel. We verify that the optimal probability of successful teleportation is determined by the smallest superposition coefficient of these partially entangled particles. However, the two-qubit entangled state to be teleported will be destroyed if teleportation fails. To solve this problem, we show a more sophisticated probabilistic resumable quantum teleportation scheme of a two-qubit entangled state, where the state to be teleported can be recovered by the sender when teleportation fails. Thus the information of the unknown state is retained during the process. Accordingly, we can repeat the teleportion process as many times as one has available quantum channels. Therefore, the quantum channels with weak entanglement can also be used to teleport unknown two-qubit entangled states successfully with a high number of repetitions, and for channels with strong entanglement only a small number of repetitions are required to guarantee successful teleportation.

Quantum teleportation of a three-qubit entangled states via W-class states

We propose a novel and efficient scheme for quantum teleportation a three-qubit entanglement state via two sets W-class states. The local measurement on Alice’s particle using two three von-Neumann projective and Bob reconstruct using unitary transformation. This quantum teleportation scheme is perfect, i.e. the success of probability and fidelity can reach one.

Deterministic remote preparation of arbitrary two qubit state via GHZ-like

we proposed a novelty and scheme for quantum teleportation of deterministic of arbitrary two qubit state via GHZ-like as quantum channel. Compared with previous scheme, the advantage of our scheme is that Alice’s unitary operation simpler and the total probability of successful and fidelity reaches to 1.

Generalized teleportation by means of discrete-time quantum walks on N-lines and N-cycles

Recently, Wang et al. [Wang et al., Quantum Inf. Process. 16 (2017) 221] developed generalized teleportation schemes based on different quantum walks structures. In their paper, an interesting open question is whether there are other graphs suitable for teleportation. Here, we extend the results of quantum teleportation of an unknown qubit state by means of discrete-time quantum walks and propose two kinds of schemes for quantum teleportation by means of discrete-time quantum walks on N-lines and N-cycles, respectively. Likewise, prior quantum entanglement is unnecessary for teleportation and quantum entanglement is generated by means of quantum walks. This further opens wider applications of quantum walks in quantum communication protocols.

Analyzing Four-Qubit Cluster State Entanglement Symmetry Property via Control Power

Control power is a newly presented indicator which reflects the measurable authority from the controller’s point of view. In this article, four controlled quantum teleportation schemes via four-particle cluster state are introduced. We calculate and discuss the control power of four controlled quantum teleportation schemes under different particle’s distribution. After computing the four scheme’s control power respectively, we find the value of control power in each scheme is equal, which is not only the minimal value of control power but no more than the classical bound. It’s evidently that the four-particle cluster state has the trait of symmetry.

Schemes for Bidirectional Quantum Teleportation Via a Hyper-Entangled State

We propose the symmetry bidirectional quantum teleportation scheme by using a bi-photon Bell-class hyper-entangled state as quantum channel. Two distant parties, Alice and Bob can simultaneously teleport the desired one-qubit states each other via Bell-state measurement and appropriate unitary transformation. We also propose the asymmetry bidirectional quantum teleportation scheme by using a bi-photon Bell-class hyper-entangled state as quantum channel. Controlled not gate operation, Bell-state measurement and appropriate unitary transformation are included.

Bidirectional Quantum Teleportation of Two-Qubit State Via Four-Qubit Cluster State

In this paper, a novel scheme of bidirectional quantum teleportation is proposed, where two-qubit states are transferred into single qubit superposition by Alice and Bob respectively using controlled-NOT operation, meanwhile the four-qubit cluster states are utilized as quantum channel. Our main novelty, which is the significant difference from other schemes of bidirectional (controlled) quantum teleportation, is: as the receivers, the both legitimate users can reconstruct the target two-qubit states through the corresponding unitary operation and controlled-NOT transmission to realize the more efficient teleportation.

Theoretical Aspects of Continuous Variables Quantum Teleportation Based on Phase-Sensitive Four-Wave Mixing

We proposal an experimental scheme of continuous variables quantum teleportation, in which the entangled EPR source are generated by phase-sensitive parametric amplified four-wave mixing. The Bell state measurement is accomplished by means of direct detection for photocurrents and two RF power splitters. It is worth mentioning that the scheme does not require a local oscillator and balanced homodyne detector. Combined with the simple experimental apparatus of parametric amplified four-wave mixing, the proposed system is easily implemented in experiments.

Multihop Teleportation via the Composite of Asymmetric W State and Bell State

In this article, quantum teleportation schemes of a single qubit, two-qubit and N-qubit state are presented in a multihop communication network. All the schemes can be completed deterministicly. The shared entanglement resource between two adjacent nodes is the composition of the asymmetric W state and Bell state. It is not equivalent to the composite of GHZ state and Bell state used by Zou et al. (Phys. Lett. A 381, 76–81 2017).

Improving the Teleportation Scheme of Five-Qubit State with a Seven-Qubit Quantum Channel

Recently, Min Li et al. (Int. J. Theor. Phys. 56, 2710, 2017) proposed an improved quantum teleportation scheme for one five-qubit unknown state with a seven-qubit quantum channel. In this paper, we present an improved protocol with only single-qubit measurements and the same seven-qubit quantum channel. Compared with previous scheme proposed, our scheme has obvious advantages of requiring fewer classical resources, possessing higher intrinsic efficiency and lower operation complexity that bring a better flexibility.

Continuous-variable quantum teleportation through bosonic memory channel

We put forward a scheme for quantum teleportation of continuous-variable Gaussian states using, as a quantum channel, a two-mode squeezed vacuum interacting with a thermal environment showing memory effects. We found that fidelity larger than the classical limit may be obtained, upon exploiting memory effects, also using lower measurement gain. We show that fidelity increases with the memory of the channel and decreases with the thermal noise. Finally, we discuss the effects of memory on the distortion cumulants.