Quasi-classical rules for qubit spin-rotation error suppression
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Publication:6163501
DOI10.1088/1361-6404/ABE13DzbMATH Open1523.81048arXiv2009.00456MaRDI QIDQ6163501
Author name not available (Why is that?)
Publication date: 9 June 2023
Published in: (Search for Journal in Brave)
Abstract: A frequently encountered source of systematic error in quantum computations is imperfections in the control pulses which are the classical fields that control qubit gate operations. From an analysis of the quantum mechanical time-evolution operator of the spin wavefunction, it has been demonstrated that composite pulses can mitigate certain systematic errors and an appealing geometric interpretation was developed for the design of error-suppressing composite pulses. Here we show that these same pulse sequences can be obtained within a quasi-classical framework. This raises the question of whether error-correction procedures exist that exploit entanglement in a manner that can not be reproduced in the quasi-classical formulation.
Full work available at URL: https://arxiv.org/abs/2009.00456
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