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Quantum Information Processing

Three-qubit W state tomography via full and marginal state reconstructions on ibm_osaka

  • 01-11-2025
Published in:
Authors
Talath H.
Govindaraja B.P.
Divyamani B.G.
Akshata Shenoy H.
Usha A. R. Devi
Sudha
Published in
Quantum Information Processing | Issue 11/2025

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Abstract

This article delves into the realm of quantum state tomography, focusing on the reconstruction of three-qubit states using IBM’s quantum processor ibm_osaka. It introduces two efficient tomographic schemes: a full three-qubit QST protocol with 17 measurement settings and a reduced-state approach involving only seven measurement settings for two-qubit subsystems. The experimental implementation on ibm_osaka demonstrates the reconstruction of the three-qubit W state, highlighting the practical utility of reduced-state tomography. The article also discusses error mitigation techniques, spectral correction procedures, and the fidelity of reconstructed states. The results show that the reduced-state approach can achieve slightly higher fidelities compared to full-state tomography, making it a promising method for resource-efficient quantum state reconstruction. The article concludes with a summary of the experimental findings and their implications for quantum computing research.
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previous article Construction of good CSS quantum codes and QSCs using Whiteman’s generalized cyclotomy of order two
next article Analytical solution of multipartite quantum nonlocality in a cluster-Ising model and an improved transfer matrix approach
Title
Three-qubit W state tomography via full and marginal state reconstructions on ibm_osaka
Authors
Talath H.
Govindaraja B.P.
Divyamani B.G.
Akshata Shenoy H.
Usha A. R. Devi
Sudha
Publication date
01-11-2025
Publisher
Springer US
Published in
Quantum Information Processing / Issue 11/2025
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-025-04964-7
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