A robust entangling gate for polar molecules using magnetic and microwave fields

TL;DR

This paper proposes a fast, high-fidelity entangling gate for polar molecules using magnetic and microwave fields, demonstrating robustness and scalability for quantum computing applications.

Contribution

It introduces a novel entangling gate design leveraging magnetic and microwave fields, achieving >0.999 fidelity and robustness against field fluctuations and thermal effects.

Findings

Achieved >0.999 fidelity in entangling gates

Demonstrated robustness to field fluctuations and thermal excitations

Showed feasibility for scalable quantum processors with polar molecules

Abstract

Polar molecules are an emerging platform for quantum technologies based on their long-range electric dipole-dipole interactions, which open new possibilities for quantum information processing and the quantum simulation of strongly correlated systems. Here, we use magnetic and microwave fields to design a fast entangling gate with $>0.999$ fidelity and which is robust with respect to fluctuations in the trapping and control fields and to small thermal excitations. These results establish the feasibility to build a scalable quantum processor with a broad range of molecular species in optical-lattice and optical-tweezers setups.