Preprint Article Version 1 This version is not peer-reviewed

CUBIT: Capacitive qUantum BIT

Version 1 : Received: 13 May 2018 / Approved: 15 May 2018 / Online: 15 May 2018 (05:29:06 CEST)

A peer-reviewed article of this Preprint also exists.

Khorasani, S. CUBIT: Capacitive qUantum BIT. C 2018, 4, 39. Khorasani, S. CUBIT: Capacitive qUantum BIT. C 2018, 4, 39.

Journal reference: C 2018, 4, 39
DOI: 10.3390/c4030039

Abstract

In this letter, it is proposed that cryogenic quantum bits could 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 anharmonicty with respect to temperature are found. Reasonable estimates reveal that a careful fabrication process could reveal the expected properties, thus putting the context of quantum computing hardware into new perspectives.

Subject Areas

graphene; two-dimensional materials; nonlinear quantum circuits; quantum bits

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