Controlled Remote State Preparation of an Arbitrary Two-Qubit State by Using GHZ States
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-016-3209-2
Abstract: In this paper, we demonstrate that two Greenberger-Horne-Zeilinger (GHZ) states can be used to realize the perfect and deterministic controlled remote state preparation of an arbitrary two-qubit state by performing only the two-qubit projective measurements… read more here.
Keywords: state; remote state; two qubit; state preparation ... See more keywords
Weak Measurement-Based Entanglement Protection of Two-Qubit X-States from Amplitude Damping Decoherence
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-017-3290-1
Abstract: Considering X-states the density matrixes of which look like the letter X, we propose a weak measurement-based entanglement protection protocol of two-qubit X-states under local amplitude damping channels using weak measurement and reversal operation. It… read more here.
Keywords: weak measurement; amplitude damping; two qubit; qubit states ... See more keywords
Generating Two-Qubit Werner States Using Superpositions of Dimer and Random States in Hilbert Space
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-019-04348-5
Abstract: Werner states are unitarily invariant states in the d dimensional Hilbert space. These states are entangled (EPR correlated) but still admits a hidden variable model. In this paper, we superpose a 2 N qubit Bell… read more here.
Keywords: state; hilbert space; werner states; two qubit ... See more keywords
Relationship between quantum coherence and uncertainty bound in an arbitrary two-qubit X-state
Sign Up to like & getrecommendations! Published in 2021 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-021-03176-4
Abstract: By considering one of the particles as a memory in a two-particle system, the entropic uncertainty relation can be improved and it is called quantum-memory-assisted entropic uncertainty relation. On the other hand, quantum coherence is… read more here.
Keywords: two qubit; quantum coherence; uncertainty bound; uncertainty ... See more keywords
Super quantum discord for general two qubit X states
Sign Up to like & getrecommendations! Published in 2017 at "Quantum Information Processing"
DOI: 10.1007/s11128-017-1547-5
Abstract: The exact solutions of the super quantum discord are derived for general two qubit X states in terms of a one-variable function. Several exact solutions of the super quantum discord are given for the general… read more here.
Keywords: quantum; general two; two qubit; super quantum ... See more keywords
Deterministic remote preparation of arbitrary multi-qubit equatorial states via two-qubit entangled states
Sign Up to like & getrecommendations! Published in 2018 at "Quantum Information Processing"
DOI: 10.1007/s11128-018-1837-6
Abstract: We propose an efficient scheme for remotely preparing an arbitrary n-qubit equatorial state via n two-qubit maximally entangled states. Compared to the former scheme (Wei et al. in Quantum Inf Process 16:260, 2017) that has… read more here.
Keywords: qubit equatorial; remote preparation; two qubit; via two ... See more keywords
X states of the same spectrum and entanglement as all two-qubit states
Sign Up to like & getrecommendations! Published in 2018 at "Quantum Information Processing"
DOI: 10.1007/s11128-018-2061-0
Abstract: We present an explicit family of two-qubit X states with entanglement-preserving unitary equivalence to the set of general states; that is, for any spectrum–entanglement combination achievable by general states, this family contains an X state… read more here.
Keywords: entanglement two; two qubit; qubit states; states spectrum ... See more keywords
Dynamics of non-equilibrium thermal quantum correlation in a two-qubit Heisenberg XYZ model
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DOI: 10.1007/s11128-020-2594-x
Abstract: The non-equilibrium thermal entanglement and quantum discord in a two-qubit Heisenberg XYZ model subjected to two thermal baths with different temperatures are investigated. The dynamical behaviors of entanglement and quantum discord under the influences of… read more here.
Keywords: two qubit; non equilibrium; quantum correlation; equilibrium thermal ... See more keywords
Time optimal control based on classification of quantum gates
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DOI: 10.1007/s11128-020-2602-1
Abstract: We study the minimum time to implement an arbitrary two-qubit gate in two heteronuclear spins systems. We give a systematic characterization of two-qubit gates based on the invariants of local equivalence. The quantum gates are… read more here.
Keywords: two qubit; minimum time; quantum gates; time ... See more keywords
Cyclic preparation of two-qubit state in two noisy environments
Sign Up to like & getrecommendations! Published in 2022 at "Quantum Information Processing"
DOI: 10.1007/s11128-021-03373-w
Abstract: In this paper, a cyclic preparation scheme is proposed. In our scheme, Alice, Bob and Charlie can cyclic prepare two-qubit state with the control of David. Firstly, the quantum channel can be constructed by using… read more here.
Keywords: qubit state; qubit; two qubit; state ... See more keywords
Research on controlling the perfect transfer of the two-qubit quantum information in spin chain
Sign Up to like & getrecommendations! Published in 2021 at "Indian Journal of Physics"
DOI: 10.1007/s12648-020-01949-3
Abstract: Perfect transfer of the two-qubit quantum information in spin chain without any magnetic field is investigated. In our work, the spin chain is placed in a particular low-intensity magnetic field whose value is symmetrical about… read more here.
Keywords: chain; information; two qubit; perfect transfer ... See more keywords