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Generating Two-Qubit Werner States Using Superpositions of Dimer and Random States in Hilbert Space

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0 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

Werner states from diagrams

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1 Published in 2023 at "Journal of Physics A: Mathematical and Theoretical"

DOI: 10.1088/1751-8121/acd039

Abstract: We present two results on multiqubit Werner states, defined to be those states that are invariant under the collective action of any given single-qubit unitary that acts simultaneously on all the qubits. Motivated by the… read more here.

Keywords: states diagrams; werner states; werner;

Verifying bound entanglement of dephased Werner states

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0 Published in 2017 at "Physical Review A"

DOI: 10.1103/physreva.96.042321

Abstract: The verification of quantum entanglement under the influence of realistic noise and decoherence is crucial for the development of quantum technologies. Unfortunately, a full entanglement characterization is generally not possible with most entanglement criteria such… read more here.

Keywords: werner states; verifying bound; entanglement dephased; entanglement ... See more keywords

Analytic Expression of Quantum Discords in Werner States under LQCC

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1 Published in 2020 at "Entropy"

DOI: 10.3390/e22020147

Abstract: In this paper, quantum discords in a special kind of states, i.e., Werner states by local quantum operations and classical communication (LQCC) protocols (WLQCC states), are studied. Nineteen parameters to quantify the quantum discords are… read more here.

Keywords: quantum; expression quantum; quantum discords; werner states ... See more keywords

Quantum Correlation Swapping between Two Werner States Undergoing Local and Nonlocal Unitary Operations

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1 Published in 2022 at "Entropy"

DOI: 10.3390/e24091244

Abstract: In this paper, quantum correlation (QC) swapping between two Werner-like states, which are transformed from Werner states undergoing local and nonlocal unitary operations, are studied. Bell states measures are performed in the middle node to… read more here.

Keywords: correlation swapping; quantum correlation; werner states; swapping two ... See more keywords