Room-temperature implementation of the Deutsch-Jozsa algorithm with a single electronic spin in diamond

TL;DR

This paper demonstrates a room-temperature implementation of the Deutsch-Jozsa quantum algorithm using a single NV center in diamond, showcasing potential for scalable quantum computing without cryogenic cooling.

Contribution

It introduces a novel method of encoding qubits and auxiliary states in a single NV center's electron spin at room temperature, advancing quantum algorithm implementation.

Findings

Successful execution of Deutsch-Jozsa algorithm at room temperature

Utilization of NV center's S=1 spin system for quantum computation

Proof of concept for scalable quantum processing in solid-state systems

Abstract

The nitrogen-vacancy defect center (NV center) is a promising candidate for quantum information processing due to the possibility of coherent manipulation of individual spins in the absence of the cryogenic requirement. We report a room-temperature implementation of the Deutsch-Jozsa algorithm by encoding both a qubit and an auxiliary state in the electron spin of a single NV center. By thus exploiting the specific S=1 character of the spin system, we demonstrate how even scarce quantum resources can be used for test-bed experiments on the way towards a large-scale quantum computing architecture.