Tunable Flux Qubit manipulated by fast pulses: operating requirements, dissipation and decoherence

TL;DR

This paper investigates the operational requirements, dissipation, and decoherence effects in a tunable flux qubit controlled by fast magnetic flux pulses, and explores the integration of Rapid Single Flux Quantum logic for improved control.

Contribution

It provides a detailed analysis of the manipulation requirements and assesses dissipation and decoherence, proposing the use of RSFQ logic for qubit control.

Findings

Operational conditions for flux qubit manipulation identified

Dissipation and decoherence levels evaluated

Potential integration of RSFQ logic for control discussed

Abstract

A double SQUID manipulated by fast magnetic flux pulses can be used as a tunable flux qubit. In this paper we study the requirements for the qubit operation, and evaluate dissipation and decoherence due to the manipulation for a typical system. Furthermore, we discuss the possibility to use an integrated Rapid Single Flux Quantum logic for the qubit control.