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author:

Su, Q.-P. (Su, Q.-P..) [1] | Bin, L. (Bin, L..) [2] | Zhang, Y. (Zhang, Y..) [3] | Ma, M.-Y. (Ma, M.-Y..) [4] | Yang, C.-P. (Yang, C.-P..) [5]

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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. © 2024, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

Keyword:

Circuit QED Hybrid Photonic qubit W state

Community:

  • [ 1 ] [Su Q.-P.]School of Physics, Hangzhou Normal University, Zhejiang, Hangzhou, 311121, China
  • [ 2 ] [Su Q.-P.]Institute for Quantum Science and Technology, University of Calgary, T2N 1N4, AB, Canada
  • [ 3 ] [Bin L.]Department of Physics, Fuzhou University, Fuzhou, 350002, China
  • [ 4 ] [Zhang Y.]School of Physics, Nanjing University, Nanjing, 210093, China
  • [ 5 ] [Ma M.-Y.]School of Physics, Hangzhou Normal University, Zhejiang, Hangzhou, 311121, China
  • [ 6 ] [Yang C.-P.]School of Physics, Hangzhou Normal University, Zhejiang, Hangzhou, 311121, China

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Source :

Quantum Information Processing

ISSN: 1570-0755

Year: 2024

Issue: 1

Volume: 23

2 . 2 0 0

JCR@2023

CAS Journal Grade:3

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ESI Highly Cited Papers on the List: 0 Unfold All

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Chinese Cited Count:

30 Days PV: 1

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