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DOE OSTI · 2352242

Understanding Spin Coherence in Polyoxometalate-Based Molecular Qubits

Johnson, Grant E.·El-Khoury, Patrick Z.
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Abstract

This research advances the understanding of spin decoherence mechanisms and addresses the grand challenges in quantum information science of generating and stabilizing quantum states that may be manipulated with single-atom precision. It is accomplished using unique capabilities developed at PNNL for ion soft landing and spatially resolved vibrational spectroscopy of well-defined supported molecular qubit (MQ) arrays. It addresses knowledge gaps impeding the development of MQ-based quantum devices by answering two scientific questions: 1) Can we minimize spin-lattice relaxation rates by tuning the substrate-MQ interface? 2) What is the optimum number of spin centers that enables sufficient coherent signal generation prior to decoherence through inter-MQ and MQ-support interactions? The objective is to develop predictive design principles for prolonging spin coherence lifetimes in arrays of optically-addressable MQs for quantum computing applications.

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BibTeXRIS

Johnson, Grant E., El-Khoury, Patrick Z.. 2021-09-14. Understanding Spin Coherence in Polyoxometalate-Based Molecular Qubits. https://doi.org/10.2172/2352242

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