Temperature-dependent spin-lattice relaxation of the nitrogen-vacancy spin triplet in diamond

Abstract

Spin-lattice relaxation within the nitrogen-vacancy (NV) center's electronic ground-state spin triplet limits its coherence times, and thereby impacts its performance in quantum applications. We report measurements of the relaxation rates on the NV center's $|m_s=0⟩\leftrightarrow |m_s=\pm 1⟩$ and $|m_s=-1⟩\leftrightarrow |m_s=+1⟩$ transitions as a function of temperature from 9 to 474 K in high-purity samples. We show that the temperature dependencies of the rates are reproduced by an ab initio theory of Raman scattering due to second-order spin-phonon interactions, and we discuss the applicability of the theory to other spin systems. Using a novel analytical model based on these results, we suggest that the high-temperature behavior of NV spin-lattice relaxation is dominated by interactions with two groups of quasilocalized phonons centered at 68.2(17) and 167(12) meV.

Main text: 7 pages, 4 figures, 44 references. Supplement: 14 pages, 11 figures, 4 tables, 25 references. Revised version v2 includes changes to improve clarity

References in corpus (10)

• Realization of a multi-node quantum network of remote solid-state qubits
• Extending Quantum Coherence in Diamond
• First-principles theory of the luminescence lineshape for the triplet transition in diamond NV centre
• Robust dynamical decoupling for quantum computing and quantum memory
• Quenching Spin Decoherence in Diamond through Spin Bath Polarization
• Dynamical Decoupling of a single electron spin at room temperature
• Efficient readout of a single spin state in diamond via spin-to-charge conversion
• Fault-tolerant operation of a logical qubit in a diamond quantum processor
• Proton magnetic resonance imaging with a nitrogen-vacancy spin sensor
• Towards exact predictions of spin-phonon relaxation times: an ab initio implementation of open quantum systems theory

Cited by in corpus (11)

• Isotope engineering for spin defects in van der Waals materials
• Temperature Dependent Photophysics of Single NV Centers in Diamond
• Temperature dependent spin-phonon coupling of boron-vacancy centers in hexagonal boron nitride
• Performance of quantum registers in diamond in the presence of spin impurities
• Solid-state platform for cooperative quantum dynamics driven by correlated emission
• Microwave-free imaging magnetometry with nitrogen-vacancy centers in nanodiamonds at near-zero field
• Estimating the degree of non-Markovianity using variational quantum circuits
• Spin-lattice relaxation of NV centers in nanodiamonds adsorbed on conducting and non-conducting surfaces
• Spin-Phonon Relaxation of Boron-Vacancy Centers in Two-Dimensional Boron Nitride Polytypes
• Quantum-impurity sensing of altermagnetic order
• Hearing the light: stray-field noise from the emergent photon in quantum spin ice