Quantum network of superconducting qubits through opto-mechanical interface

TL;DR

This paper proposes a scheme to connect superconducting qubits via an opto-mechanical interface, enabling quantum communication with optical photons and allowing operation at higher temperatures than traditional methods.

Contribution

It introduces a novel opto-mechanical interface for superconducting qubits that facilitates quantum networking and operates effectively under realistic experimental conditions.

Findings

Quantum link between superconducting and optical qubits demonstrated

Scheme works at temperatures above 1 K, easing cooling requirements

Tunable pulse shapes and frequencies enable flexible quantum communication

Abstract

We propose a scheme to realize quantum networking of superconducting qubits based on the opto-mechanical interface. The superconducting qubits interact with the microwave photons, which then couple to the optical photons through the opto-mechanical interface. The interface generates a quantum link between superconducting qubits and optical flying qubits with tunable pulse shapes and carrier frequencies, enabling transmission of quantum information to other superconducting or atomic qubits. We show that the scheme works under realistic experimental conditions and it also provides a way for fast initialization of the superconducting qubits under 1 K instead of 20 mK operation temperature.