Hybrid Quantum System with Nitrogen-Vacancy Centers in Diamond Coupled to Surface-Phonon Polaritons in Piezomagnetic Superlattices

Peng-Bo Li (李蓬勃) and Franco Nori (野理)

Phys. Rev. Applied 10, 024011 – Published 10 August 2018

Abstract

We investigate a hybrid quantum system where an ensemble of nitrogen-vacancy (NV) centers in diamond is interfaced with a piezomagnetic superlattice that supports surface-phonon polaritons (SPHPs). We show that the strong magnetic coupling between the collective spin waves in the NV spin ensemble and the quantized SPHPs can be realized, due to the subwavelength nature of the SPHPs and relatively long spin-coherence times. The magnon-polariton coupling allows different modes of the SPHPs to be mapped and orthogonally stored in different spatial modes of excitation in the solid medium. Because of its easy implementation and high tunability, the proposed hybrid structure with NV spins and piezoactive superlattices could be used for quantum memory and quantum computation.

Received 3 January 2018
Revised 18 June 2018

DOI:https://doi.org/10.1103/PhysRevApplied.10.024011

Physics Subject Headings (PhySH)

Phonon polariton Piezoelectricity Quantum information with hybrid systems Quantum information with solid state qubits

Multiferroics Nitrogen vacancy centers in diamond Superconducting qubits

Microwave techniques

Quantum Information, Science & TechnologyCondensed Matter, Materials & Applied PhysicsAtomic, Molecular & Optical

Authors & Affiliations

Peng-Bo Li (李蓬勃)^1,2,* and Franco Nori (野理)^2,3

¹Shaanxi Province Key Laboratory of Quantum Information and Quantum Optoelectronic Devices, Department of Applied Physics, Xi’an Jiaotong University, Xi’an 710049, China
²Theoretical Quantum Physics Laboratory, RIKEN Cluster for Pioneering Research, Wako-shi, Saitama 351-0198, Japan
³Department of Physics, The University of Michigan, Ann Arbor, Michigan 48109-1040, USA