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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

Globally controlled quantum wires for perfect qubit transport, mirroring, and computing.

Joseph Fitzsimons¹, Jason Twamley

¹Department of Materials, Oxford University, Oxford, United Kingdom. joe.fitzsimons@materials.ox.ac.uk

Physical Review Letters

|October 10, 2006

Summary

We introduce a novel quantum wire design for perfect qubit transmission and mirroring. This design enables universal quantum computation using the wire as both memory and gate architecture.

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Area of Science:

Quantum Information Science
Condensed Matter Physics
Quantum Computing Hardware

Background:

Quantum information processing relies on robust qubit transmission and manipulation.
Existing quantum wire designs face challenges in maintaining qubit coherence and enabling complex operations.

Purpose of the Study:

To present a new quantum wire design enabling perfect qubit transmission.
To demonstrate the capability for perfect mirroring of multiply encoded qubits.
To establish a framework for universal quantum computation using this quantum wire architecture.

Main Methods:

Utilizing a uniformly coupled Ising spin chain.
Applying global pulses to the spin chain.
Implementing a perfect mirror operation as a clock cycle for computation.

Main Results:

Achieved perfect transmission of single qubits.
Demonstrated perfect mirroring of multiply encoded qubits.
Established the quantum wire's interior as quantum memory and its ends as gate operations.

Conclusions:

The proposed quantum wire design offers a promising platform for scalable quantum computation.
Perfect mirroring and global pulse operations are key to enabling universal quantum gates.
This design integrates memory and gate functionalities within a single quantum wire structure.