DOAJ Open Access 2021

Identification of Time-Varying Decoherence Rates for Open Quantum Systems

Shuixin Xiao Shibei Xue Daoyi Dong Jun Zhang

Abstrak

Parameter identification of quantum systems is a fundamental task in developing practical quantum technology. In this article, we study the identification of time-varying decoherence rates for open quantum systems. Given the measurement data of local observables, this can be formulated as an optimization problem. We expand the unknown decoherence rates into Fourier series and take the expansion coefficients as optimization variables. We then convert it into a minimax problem and apply a sequential linear programming technique to solve it. Numerical study on a two-qubit quantum system with a time-varying decoherence rate demonstrates the effectiveness of our algorithm.

Topik & Kata Kunci

Atomic physics. Constitution and properties of matter Materials of engineering and construction. Mechanics of materials

Penulis (4)

Shuixin Xiao

Shibei Xue

Daoyi Dong

Jun Zhang

Format Sitasi

APA MLA BibTeX

Xiao, S., Xue, S., Dong, D., Zhang, J. (2021). Identification of Time-Varying Decoherence Rates for Open Quantum Systems. https://doi.org/10.1109/TQE.2021.3093055

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Informasi Jurnal

Tahun Terbit: 2021
Sumber Database: DOAJ
DOI: 10.1109/TQE.2021.3093055
Akses: Open Access ✓