Improving the Teleportation Scheme of Three-Qubit State with a Four-Qubit Quantum Channel
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-017-3547-8
Abstract: Recently, Zhao-Hui Wei et al. (Int. J. Theor. Phys. 55, 4687, 2016) proposed an improved quantum teleportation scheme for one three-qubit unknown state with a four-qubit quantum channel based on the original one proposed by… read more here.
Keywords: state; four qubit; three qubit; quantum channel ... See more keywords
Three-qubit Heisenberg XY Chain with Nearest-neighbour Interaction in the Ultrastrong Coupling Regime of Superconducting Circuits
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-019-04021-x
Abstract: We explore the simulation of three-qubit Heisenberg XY chain with nearest-neighbour interaction in a system of superconducting charge qubits ultrastrongly coupled to a LC resonator. By resorting to parametric modulation of external magnetic fields, the… read more here.
Keywords: neighbour interaction; chain nearest; nearest neighbour; three qubit ... See more keywords
Bidirectional Quantum Controlled Teleportation of Three-Qubit State by Using GHZ States
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-019-04223-3
Abstract: In this paper, we present a scheme of bidirectional quantum controlled teleportation of three-qubit state by using GHZ states. Alice transmits an unknown three-qubit entangled state to Bob, and Bob transmit an unknown three-qubit entangled… read more here.
Keywords: state; bidirectional quantum; qubit; three qubit ... See more keywords
Restoration of three-qubit entanglements and protection of tripartite quantum state sharing over noisy channels via environment-assisted measurement and reversal weak measurement
Sign Up to like & getrecommendations! Published in 2017 at "Quantum Information Processing"
DOI: 10.1007/s11128-017-1584-0
Abstract: The restoration of three-qubit entanglement is investigated under the amplitude damping (AD) decoherence with environment-assisted measurement (EAM) and reversal weak measurement (RWM). The results show that there exists a critical strength of RWM dependent of… read more here.
Keywords: state; rwm; restoration three; measurement ... See more keywords
Minimal control power of controlled dense coding and genuine tripartite entanglement
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DOI: 10.1038/s41598-017-03822-6
Abstract: We investigate minimal control power (MCP) for controlled dense coding defined by the channel capacity. We obtain MCPs for extended three-qubit Greenberger-Horne-Zeilinger (GHZ) states and generalized three-qubit W states. Among those GHZ states, the standard… read more here.
Keywords: controlled dense; three qubit; genuine tripartite; dense coding ... See more keywords
Entanglement evolution of a three-qubit system after interaction with even three-mode nonlinear coherent state
Sign Up to like & getrecommendations! Published in 2021 at "Physica Scripta"
DOI: 10.1088/1402-4896/abdd55
Abstract: In this paper, using an entangled three-mode field state, we study the production of entanglement in a three- qubit system. The entangled three-mode field state is defined as superposed three-mode nonlinear coherent state, which is… read more here.
Keywords: state; qubit system; three mode; three qubit ... See more keywords
The dynamics of Bell nonlocality for three-qubit system in independent reservoirs
Sign Up to like & getrecommendations! Published in 2021 at "Laser Physics"
DOI: 10.1088/1555-6611/ac08a2
Abstract: The Bell nonlocality for initially general W states undergoing independent generalized amplitude damping channels are investigated. We examine in detail the effect of adding the number of qubits in the reservoir on delay of the… read more here.
Keywords: bell nonlocality; nonlocality; dynamics bell; three qubit ... See more keywords
Relating EPR steering with the fidelity of quantum teleportation for two- and three-qubit states
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/accabe
Abstract: Einstein–Podolsky–Rosen (EPR) steering is an important quantum resource in quantum information and computation. The relationships between EPR steering and the fidelity of quantum teleportation for two- and three-qubit states are investigated in this paper. For… read more here.
Keywords: qubit; epr steering; qubit states; teleportation ... See more keywords
Deterministic transformations of three-qubit entangled pure states
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.100.022320
Abstract: The states of three-qubit systems split into two inequivalent types of genuine tripartite entanglement, namely the Greenberger-Horne-Zeilinger (GHZ) type and the $W$ type. A state belonging to one of these classes can be stochastically transformed… read more here.
Keywords: deterministic transformations; transformations three; qubit; pure states ... See more keywords
Machine-learning-based three-qubit gate design for the Toffoli gate and parity check in transmon systems
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.102.012601
Abstract: We use machine-learning techniques to design three-qubit entangling gates with fidelities of g99.9% and duration of 50 ns for nearest-neighbor coupled flux-tunable transmons in circuit quantum electrodynamics architectures. The gate design procedure enforces realistic constraints… read more here.
Keywords: machine learning; gate; three qubit; gate design ... See more keywords
Vector properties of entanglement in a three-qubit system
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.102.032401
Abstract: We suggest a dynamical vector model of entanglement in a three qubit system based on isomorphism between $su(4)$ and $so(6)$ Lie algebras. Generalizing Plucker-type description of three-qubit local invariants we introduce three pairs of real-valued… read more here.
Keywords: entanglement three; qubit system; qubit; three qubit ... See more keywords