CUBIT: Capacitive qUantum BIT

CUBIT: Capacitive qUantum BIT

In this letter, it is proposed that cryogenic quantum bits can operate based on the nonlinearity due to the quantum capacitance of two-dimensional Dirac materials, and in particular graphene. The anharmonicity of a typical superconducting quantum bit is calculated, and the sensitivity of quantum bit...

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Bibliographic Details
Main Author: Sina Khorasani
Format: Article
Language:English
Published: MDPI AG 2018-07-01
Series:C
Subjects:
graphene
two-dimensional materials
nonlinear quantum circuits
quantum bits
Online Access:http://www.mdpi.com/2311-5629/4/3/39
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spelling doaj-b3ae14341a31422e8879b88cf4f8f6da2020-11-24T20:43:04ZengMDPI AGC2311-56292018-07-01433910.3390/c4030039c4030039CUBIT: Capacitive qUantum BITSina Khorasani0Vienna Center for Quantum Science and Technology, University of Vienna, 1090 Vienna, AustriaIn this letter, it is proposed that cryogenic quantum bits can operate based on the nonlinearity due to the quantum capacitance of two-dimensional Dirac materials, and in particular graphene. The anharmonicity of a typical superconducting quantum bit is calculated, and the sensitivity of quantum bit frequency and anharmonicity with respect to temperature are found. Reasonable estimates reveal that a careful fabrication process can reveal expected properties, putting the context of quantum computing hardware into new perspectives.http://www.mdpi.com/2311-5629/4/3/39graphenetwo-dimensional materialsnonlinear quantum circuitsquantum bits
collection DOAJ
language English
format Article
sources DOAJ
author Sina Khorasani
spellingShingle Sina Khorasani
CUBIT: Capacitive qUantum BIT
C
graphene
two-dimensional materials
nonlinear quantum circuits
quantum bits
author_facet Sina Khorasani
author_sort Sina Khorasani
title CUBIT: Capacitive qUantum BIT
title_short CUBIT: Capacitive qUantum BIT
title_full CUBIT: Capacitive qUantum BIT
title_fullStr CUBIT: Capacitive qUantum BIT
title_full_unstemmed CUBIT: Capacitive qUantum BIT
title_sort cubit: capacitive quantum bit
publisher MDPI AG
series C
issn 2311-5629
publishDate 2018-07-01
description In this letter, it is proposed that cryogenic quantum bits can operate based on the nonlinearity due to the quantum capacitance of two-dimensional Dirac materials, and in particular graphene. The anharmonicity of a typical superconducting quantum bit is calculated, and the sensitivity of quantum bit frequency and anharmonicity with respect to temperature are found. Reasonable estimates reveal that a careful fabrication process can reveal expected properties, putting the context of quantum computing hardware into new perspectives.
topic graphene
two-dimensional materials
nonlinear quantum circuits
quantum bits
url http://www.mdpi.com/2311-5629/4/3/39
work_keys_str_mv AT sinakhorasani cubitcapacitivequantumbit
_version_ 1716820790346776576

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