Understanding Central Spin Decoherence Due to Interacting Dissipative Spin Baths
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2024-06-18 |
| Journal | Physical Review Letters |
| Authors | Mykyta Onizhuk, Yuxin Wang, Jonah Nagura, Aashish A. Clerk, Giulia Galli |
| Institutions | Joint Center for Quantum Information and Computer Science, University of Chicago |
| Citations | 6 |
Abstract
Section titled āAbstractāWe 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.