Polynomial procedure of avoiding multiqubit errors arising due to qubit-qubit interaction

TL;DR

This paper proposes a polynomially scalable method using intermediate qubits to prevent multiqubit errors caused by qubit-qubit interactions in quantum computers.

Contribution

It introduces a novel polynomial procedure employing additional intermediate qubits to mitigate errors from qubit interactions.

Findings

Requires only polynomial increase in qubits and steps

Effectively reduces multiqubit errors due to qubit interactions

Applicable to quantum computer implementations with unavoidable qubit interactions

Abstract

Recently proposed implementations of quantum computer suffer from unavoidable interaction between quantum bits depending upon data being written in them. Novel procedure of avoiding multiqubit errors arising due to uncontrollable qubit-qubit interaction by using addititonal intermediate qubits is proposed. It is shown that the scheme requires only polynomial increase in number of qubits and algorithmic steps.