ScQ cloud quantum computation for generating Greenberger-Horne-Zeilinger states of up to 10 qubits

TL;DR

This paper presents an online quantum computing platform, ScQ, capable of generating and verifying GHZ states of up to 10 qubits using a superconducting processor with a user-friendly interface.

Contribution

Introduction of a publicly accessible quantum platform, ScQ, enabling the generation of large GHZ states on a 10-qubit superconducting array with detailed performance metrics.

Findings

Successful generation of GHZ states up to 10 qubits

Implementation of user-friendly GUI and quantum assembly language

Performance metrics including gate fidelities and device details

Abstract

In this study, we introduce an online public quantum computation platform, named as ScQ, based on a 1D array of a 10-qubit superconducting processor. Single-qubit rotation gates can be performed on each qubit. Controlled-NOT gates between nearest-neighbor sites on the 1D array of 10 qubits are available. We show the online preparation and verification of Greenberger-Horne-Zeilinger states of up to 10 qubits through this platform for all possible blocks of qubits in the chain. The graphical user interface and quantum assembly language methods are presented to achieve the above tasks, which rely on a parameter scanning feature implemented on ScQ. The performance of this quantum computation platform, such as fidelities of logic gates and details of the superconducting device, are presented.