Title | Understanding Central Spin Decoherence Due to Interacting Dissipative Spin Baths |
Publication Type | Journal Article |
Year of Publication | 2024 |
Authors | Onizhuk, M, Wang, Y-X, Nagura, J, Clerk, AA, Galli, G |
Journal | Phys. Rev. Lett. |
Volume | 132 |
Pages | 250401 |
Date Published | 6/18/2024 |
Abstract | We propose a new approach to simulate the decoherence of a central spin coupled to an interacting dissipative spin bath with cluster-correlation expansion techniques. We benchmark the approach on generic 1D and 2D spin baths and find excellent agreement with numerically exact simulations. Our calculations show a complex interplay between dissipation and coherent spin exchange, leading to increased central spin coherence in the presence of fast dissipation. Finally, we model near-surface nitrogen-vacancy centers in diamond and show that accounting for bath dissipation is crucial to understanding their decoherence. Our method can be applied to a variety of systems and provides a powerful tool to investigate spin dynamics in dissipative environments. |
URL | https://arxiv.org/abs/2312.01205 |
DOI | 10.1103/PhysRevLett.132.250401 |