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Quantum Chemistry Superconducting Qubits

Ab initio transport calculations: from normal to superconducting current

arXiv

Authors: H. Ness, M. van Schilfgaarde

Year

2023

Paper ID

54894

Status

Preprint

Abstract Read

~2 min

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Abstract

Applying the Bogoliubov-de Gennes equations with density-functional theory, it is possible to formulate first-principles description of current-phase relationships in superconducting/normal (magnetic)/superconducting trilayers. Such structures are the basis for the superconducting analog of Magnetoresistive random access memory devices (JMRAM). In a recent paper [1] we presented results from the first attempt to formulate such a theory, applied to the Nb/Ni/Nb trilayers. In the present work we provide computational details, explaining how to construct key ingredient scattering matrices $S_N$ in a framework of linear muffin-tin orbitals (LMTO).

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Applying the Bogoliubov-de Gennes equations with density-functional theory, it is possible to formulate first-principles description of current-phase relationships in...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2309.06984 [2] arXiv https://arxiv.org/abs/2309.06984 [3] Publisher https://arxiv.org/abs/2309.06984

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