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   Articles with "multi qubit" as a keyword



Construct Multipartite Maximally Entangled State via Recurrence Relation

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recommendations! Published in 2018 at "International Journal of Theoretical Physics"

DOI: 10.1007/s10773-018-3956-3

Abstract: Multi-qubit pure states play an important role in the application of quantum entanglement. In this paper, we find that the maximally multi-qubit pure states have a simple recurrence relation. The existence recurrence relation of multi-qubit… read more here.

Keywords: multipartite maximally; recurrence; multi qubit; recurrence relation ... See more keywords

Deterministic multi-qubit entanglement in a quantum network.

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recommendations! Published in 2021 at "Nature"

DOI: 10.1038/s41586-021-03288-7

Abstract: The generation of high-fidelity distributed multi-qubit entanglement is a challenging task for large-scale quantum communication and computational networks1-4. The deterministic entanglement of two remote qubits has recently been demonstrated with both photons5-10 and phonons11. However,… read more here.

Keywords: state; quantum; quantum network; multi qubit ... See more keywords
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Few-qubit quantum refrigerator for cooling a multi-qubit system

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recommendations! Published in 2021 at "Scientific Reports"

DOI: 10.1038/s41598-021-92258-0

Abstract: We propose to use a few-qubit system as a compact quantum refrigerator for cooling an interacting multi-qubit system. We specifically consider a central qubit coupled to N ancilla qubits in a so-called spin-star model to… read more here.

Keywords: qubit system; multi qubit; quantum refrigerator; refrigerator cooling ... See more keywords

Multi-qubit correction for quantum annealers

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recommendations! Published in 2021 at "Scientific Reports"

DOI: 10.1038/s41598-021-95482-w

Abstract: We present multi-qubit correction (MQC) as a novel postprocessing method for quantum annealers that views the evolution in an open-system as a Gibbs sampler and reduces a set of excited states to a new synthetic… read more here.

Keywords: state; quantum; multi qubit; qubit correction ... See more keywords

Certification of multi-qubit quantum systems with temporal inequalities

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recommendations! Published in 2024 at "New Journal of Physics"

DOI: 10.1088/1367-2630/ad86e5

Abstract: Demonstrating contextual correlations in quantum theory through the violation of a non-contextuality inequality necessarily needs some ‘contexts’ and thus assumes some compatibility relations between the measurements. As a result, any self-testing protocol based on the… read more here.

Keywords: quantum systems; multi qubit; certification multi; qubit quantum ... See more keywords

Efficient and Secure Multi-Qubit Broadcast-Based Quantum Federated Learning

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recommendations! Published in 2025 at "IEEE Transactions on Information Forensics and Security"

DOI: 10.1109/tifs.2025.3583901

Abstract: Quantum Federated Learning (QFL) has emerged as a promising research direction by combining the strengths of quantum computing and federated learning. However, existing QFL solutions have consistently failed to simultaneously improve client training efficiency and… read more here.

Keywords: qubit; qubit broadcast; federated learning; multi qubit ... See more keywords

Demonstration of universal parametric entangling gates on a multi-qubit lattice

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recommendations! Published in 2018 at "Science Advances"

DOI: 10.1126/sciadv.aao3603

Abstract: Harnessing techniques from analog signal processing, we establish a new path for large-scale quantum computation. We show that parametric coupling techniques can be used to generate selective entangling interactions for multi-qubit processors. By inducing coherent… read more here.

Keywords: fidelity; multi qubit; entangling gates; universal parametric ... See more keywords

Entangled thermal mixed states for multi-qubit systems

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recommendations! Published in 2019 at "Modern Physics Letters B"

DOI: 10.1142/s0217984919502543

Abstract: We derive the entangled thermal mixed states by using the formalism of phase states for a finite-dimensional algebra of a multi-qubit system in contact with an independent thermal environment of absolute temperature [Formula: see text].… read more here.

Keywords: mixed states; system; multi qubit; entangled thermal ... See more keywords

Probabilistic Hierarchical Quantum Information Splitting of Arbitrary Multi-Qubit States

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recommendations! Published in 2022 at "Entropy"

DOI: 10.3390/e24081077

Abstract: By utilizing the non-maximally entangled four-qubit cluster states as the quantum channel, we first propose a hierarchical quantum information splitting scheme of arbitrary three-qubit states among three agents with a certain probability. Then we generalize… read more here.

Keywords: qubit states; hierarchical quantum; quantum information; arbitrary multi ... See more keywords

Quantum Private Array Content Comparison Based on Multi-Qubit Swap Test

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recommendations! Published in 2025 at "Mathematics"

DOI: 10.3390/math13233827

Abstract: Current private comparison schemes primarily focus on comparing single secret integers using quantum technologies, while the area of private array content comparison remains relatively unexplored. To bridge this gap, we introduce a quantum private array… read more here.

Keywords: comparison; swap test; qubit swap; multi qubit ... See more keywords