Realizing flexible two-qubit controlled phase gate with a hybrid solid-state system

TL;DR

This paper proposes a theoretical scheme to implement a flexible two-qubit controlled phase gate using a hybrid solid-state system involving nitrogen-vacancy centers and superconducting qubits coupled via a transmission line resonator, adaptable with current technology.

Contribution

It introduces a novel method for realizing a controllable two-qubit gate in a hybrid system, enhancing flexibility and potential for experimental implementation.

Findings

The scheme enables adjustable coupling between qubits.

It is compatible with existing experimental setups.

The protocol demonstrates potential for practical quantum computing applications.

Abstract

We propose a theoretical scheme for realizing {\deg}exible two-qubit controlled phase gate. A transmission line resonator is used to induce the coupling between nitrogen-vacancy (N-V) in diamond and superconducting qubit. The N-V center acts as control qubit and the superconducting qubit as target qubit. Through adjusting external flux, we obtain desired coupling between random superconducting qubit and transmission line resonator. Moreover, our protocol might be implemented via the current experimental technology.