Efficient Implementation of a Quantum Algorithm in a Single Nitrogen Vacancy Center of Diamond

TL;DR

This paper demonstrates an efficient implementation of Grover's quantum search algorithm within a single nitrogen vacancy center in diamond, leveraging indirect nuclear spin control via electron spin manipulation.

Contribution

It introduces a method to implement a full quantum algorithm in a single NV center using hyperfine interactions for control, advancing quantum computing in solid-state systems.

Findings

Successful implementation of Grover's algorithm in a single NV center

Quantum advantage demonstrated over classical search

Effective control of nuclear spins via electron spin operations

Abstract

Quantum computers have the potential to speed up certain problems that are hard for classical computers. Hybrid systems, such as the nitrogen vacancy (NV) center in diamond, are among the most promising systems to implement quantum computing, provided the control of the different types of qubits can be efficiently implemented. In the case of the NV center, the anisotropic hyperfine interaction allows one to control the nuclear spins indirectly, through gate operations targeting the electron spin, combined with free precession. Here we demonstrate that this approach allows one to implement a full quantum algorithm, using the example of Grover's quantum search in a single NV center, whose electron is coupled to a carbon nuclear spin. The results clearly demonstrate the advantage of the quantum algorithm over the classical case.