# Toward long-range entanglement between electrically driven single-molecule magnets

## TL;DR

This paper demonstrates the potential for long-range entanglement between single-molecule magnets mediated by a superconducting resonator, leveraging electric field sensitivity to advance molecular quantum computing.

## Contribution

It introduces a method to achieve long-range entanglement between molecular qubits using electric field sensitivity of TbPc₂ molecules and a superconducting resonator as a mediator.

## Key findings

- TbPc₂ molecules show hyperfine Stark effect sensitivity to electric fields.
- The molecule-resonator interaction approaches strong-coupling regime.
- Potential to enable scalable molecular quantum computing architectures.

## Abstract

Over the past two decades, several molecules have been explored as possible building blocks of a quantum computer, a device that would provide exponential speedups for a number of problems, including the simulation of large, strongly correlated chemical systems. Achieving strong interactions and entanglement between molecular qubits remains an outstanding challenge. Here, we show that the TbPc$_2$ single-molecule magnet has the potential to overcome this obstacle due to its sensitivity to electric fields stemming from the hyperfine Stark effect. We show how this feature can be leveraged to achieve long-range entanglement between pairs of molecules using a superconducting resonator as a mediator. Our results suggest that the molecule-resonator interaction is near the edge of the strong-coupling regime and could potentially pass into it given a more detailed, quantitative understanding of the TbPc$_2$ molecule.