Quantum information processing with superconducting qubits in a microwave field

TL;DR

This paper explores the quantum behavior of superconducting qubits in microwave fields, demonstrating Rabi oscillations and proposing a new quantum computing scheme utilizing Josephson qubits and microwave coupling.

Contribution

It introduces a novel quantum computing approach with Josephson qubits coupled via microwaves, including new gate implementations.

Findings

Demonstrated Rabi oscillations for single- and multi-photon processes

Proposed a new quantum computing scheme with Josephson qubits

Showed feasibility of microwave-mediated qubit coupling

Abstract

We investigate the quantum dynamics of a Cooper-pair box with a superconducting loop in the presence of a nonclassical microwave field. We demonstrate the existence of Rabi oscillations for both single- and multi-photon processes and, moreover, we propose a new quantum computing scheme (including one-bit and conditional two-bit gates) based on Josephson qubits coupled through microwaves.