Control of a superconducting qubit in the presence of a nonlinear backreaction

Jason F. Ralph; Terrence D. Clark; Mark J. Everitt; Peter Steiffell; Robert J. Prance; Helen Prance

doi:10.1117/12.477421

1 August 2002 Control of a superconducting qubit in the presence of a nonlinear backreaction

Jason F. Ralph, Terrence D. Clark, Mark J. Everitt, Peter Steiffell, Robert J. Prance, Helen Prance

Proceedings Volume 4732, Photonic and Quantum Technologies for Aerospace Applications IV; (2002) https://doi.org/10.1117/12.477421
Event: AeroSense 2002, 2002, Orlando, FL, United States

Abstract

There are a number of systems that are currently being considered as candidates for the construction of qubits, quantum logic gates and quantum computers. Some of the systems, notably atoms in magnetic traps and nuclear magnetic resonance (NMR) systems, have had some success in performing the elementary operations that would be required in large-scale quantum computer. However, these systems are not necessarily seen as viable technologies for quantum computing in the longer term. The recent demonstration of macroscopic coherence in a superconducting ring (consisting of a thick superconducting ring containing one or more Josephson weak link devices) has added significant weight to the idea of using superconducting persistent current devices (SQUIDs) in quantum logic systems. In this paper, we consider one aspect of the quantum mechanical SQUID, the nonlinear effect of SQUID on the classical control parameters, and we discuss how it may influence the construction and design of quantum logic gates based on SQUID devices. In particular, we look at problems associated with fixing the classical magnetic flux bias for a quantum mechanical SQUID at, or near, a quantum mechanical transition or resonance.

Citation Download Citation

Jason F. Ralph, Terrence D. Clark, Mark J. Everitt, Peter Steiffell, Robert J. Prance, and Helen Prance "Control of a superconducting qubit in the presence of a nonlinear backreaction", Proc. SPIE 4732, Photonic and Quantum Technologies for Aerospace Applications IV, (1 August 2002); https://doi.org/10.1117/12.477421

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Quantum communications

Superconductors

Magnetism

Computing systems

Quantum computing

Inductance

Electromagnetism

Show All Keywords

Keywords/Phrases

Search In:

Publication Years