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Quantum Information Processing
Published in: Quantum Information Processing 1/2024

01-01-2024

Generation of a hybrid W entangled state of three photonic qubits with different encodings

Authors: Qi-Ping Su, Liang Bin, Yu Zhang, Meng-Yun Ma, Chui-Ping Yang

Published in: Quantum Information Processing | Issue 1/2024

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Abstract

The W-type entangled states are very useful in quantum computing and quantum communication. Many works have been devoted to preparing non-hybrid W states (i.e., all qubits with the same encoding) in various physical systems. On the other hand, hybrid W entangled states are key ingredients for hybrid quantum computing and quantum communication. In this work, we propose to create a hybrid W entangled state of three photonic qubits each with a different encoding. The hybrid W state is prepared by employing three microwave cavities coupled to a superconducting flux qutrit (i.e., a three-level quantum system). This proposal requires only a single qutrit to couple the three cavities, thus the system architecture is greatly simplified. Since there is no need of making any measurement, the W state is created deterministically. As an example, our numerical simulation demonstrates that within current experimental technology, the proposed hybrid W state can be created with a high fidelity. This proposal is universal and can be applied to create the proposed hybrid W state, by using three microwave or optical cavities coupled to a three-level natural or artificial atom.
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Metadata
Title
Generation of a hybrid W entangled state of three photonic qubits with different encodings
Authors
Qi-Ping Su
Liang Bin
Yu Zhang
Meng-Yun Ma
Chui-Ping Yang
Publication date
01-01-2024
Publisher
Springer US
Published in
Quantum Information Processing / Issue 1/2024
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-023-04227-3

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