Implementation of Grover search algorithm with Josephson charge qubits

TL;DR

This paper proposes a practical scheme for implementing the Grover search algorithm using Josephson charge qubits, facilitating scalable quantum computing with current technology.

Contribution

It introduces a simple, efficient, and easily manipulated implementation method for Grover search with Josephson charge qubits, suitable for current experimental setups.

Findings

Scheme is feasible with current technology.

Allows selective coupling of qubits via common inductance.

Supports multiple manipulations before decoherence occurs.

Abstract

A scheme of implementing the Grover search algorithm based on Josephson charge qubits has been proposed, which would be a key step to scale more complex quantum algorithms and very important for constructing a real quantum computer via Josephson charge qubits. The present scheme is simple but fairly efficient, and easily manipulated because any two-charge-qubit can be selectively and effectively coupled by a common inductance. More manipulations can be carried out before decoherence sets in. Our scheme can be realized within the current technology.