Quantum Computing with Endohedral Fullerenes

TL;DR

This paper reviews the current state of using endohedral fullerenes as qubits in spin quantum computers, covering their properties, proposed architectures, quantum operations, and detection methods.

Contribution

It provides a comprehensive overview of theoretical proposals, material considerations, and experimental efforts for implementing quantum computing with N@C60 and P@C60 fullerenes.

Findings

Discussion of spin structures and quantum operations with endohedral fullerenes

Review of material science aspects for scalable architectures

Summary of experimental efforts in single spin detection

Abstract

We review the present state of the art in using the endohedral fullerenes N@C60 and P@C60 as qubits in a spin quantum computer. After a brief introduction to spin quantum computing, we first discuss the rich spin structure of these endohedral fullerenes and specific theoretical proposals for architectures and operation models leading to a scalable quantum computer. We then briefly discuss those aspects of materials science that are needed to realize the proposed architectures. The central part of this chapter is a review of quantum operations and entanglement realized with endohedral fullerenes. Finally, we review efforts to realize single spin detection of endohedral fullerenes and conclude with a brief outlook on outstanding problems to be solved for obtaining a scalable quantum register.