DFT Analysis of Hole Qubits Spin State in Germanium Thin Layer

Due to the presence of a strong spin–orbit interaction, hole qubits in germanium are increasingly being considered as candidates for quantum computing. These objects make it possible to create electrically controlled logic gates with the basic properties of scalability, a reasonable quantum error co...

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Main Authors: Andrey Chibisov, Maxim Aleshin, Mary Chibisova
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/12/13/2244
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author Andrey Chibisov
Maxim Aleshin
Mary Chibisova
author_facet Andrey Chibisov
Maxim Aleshin
Mary Chibisova
author_sort Andrey Chibisov
collection DOAJ
description Due to the presence of a strong spin–orbit interaction, hole qubits in germanium are increasingly being considered as candidates for quantum computing. These objects make it possible to create electrically controlled logic gates with the basic properties of scalability, a reasonable quantum error correction, and the necessary speed of operation. In this paper, using the methods of quantum-mechanical calculations and considering the non-collinear magnetic interactions, the quantum states of the system 2D structure of Ge in the presence of even and odd numbers of holes were investigated. The spatial localizations of hole states were calculated, favorable quantum states were revealed, and the magnetic structural characteristics of the system were analyzed.
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spelling doaj.art-968595286f0d4ec594efd9516c0696112023-11-30T22:16:48ZengMDPI AGNanomaterials2079-49912022-06-011213224410.3390/nano12132244DFT Analysis of Hole Qubits Spin State in Germanium Thin LayerAndrey Chibisov0Maxim Aleshin1Mary Chibisova2Computing Center, Far Eastern Branch of the Russian Academy of Sciences, 680000 Khabarovsk, RussiaComputing Center, Far Eastern Branch of the Russian Academy of Sciences, 680000 Khabarovsk, RussiaComputing Center, Far Eastern Branch of the Russian Academy of Sciences, 680000 Khabarovsk, RussiaDue to the presence of a strong spin–orbit interaction, hole qubits in germanium are increasingly being considered as candidates for quantum computing. These objects make it possible to create electrically controlled logic gates with the basic properties of scalability, a reasonable quantum error correction, and the necessary speed of operation. In this paper, using the methods of quantum-mechanical calculations and considering the non-collinear magnetic interactions, the quantum states of the system 2D structure of Ge in the presence of even and odd numbers of holes were investigated. The spatial localizations of hole states were calculated, favorable quantum states were revealed, and the magnetic structural characteristics of the system were analyzed.https://www.mdpi.com/2079-4991/12/13/2244hole qubit2D germaniumquantum statesdensity functional theoryatomic structure
spellingShingle Andrey Chibisov
Maxim Aleshin
Mary Chibisova
DFT Analysis of Hole Qubits Spin State in Germanium Thin Layer
Nanomaterials
hole qubit
2D germanium
quantum states
density functional theory
atomic structure
title DFT Analysis of Hole Qubits Spin State in Germanium Thin Layer
title_full DFT Analysis of Hole Qubits Spin State in Germanium Thin Layer
title_fullStr DFT Analysis of Hole Qubits Spin State in Germanium Thin Layer
title_full_unstemmed DFT Analysis of Hole Qubits Spin State in Germanium Thin Layer
title_short DFT Analysis of Hole Qubits Spin State in Germanium Thin Layer
title_sort dft analysis of hole qubits spin state in germanium thin layer
topic hole qubit
2D germanium
quantum states
density functional theory
atomic structure
url https://www.mdpi.com/2079-4991/12/13/2244
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