Berlin 2024 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 35: Poster: Quantum Dynamics and Many-body Systems

DY 35.6: Poster

Wednesday, March 20, 2024, 15:00–18:00, Poster D

Probing Many-Body Dynamics in Dense Nitrogen Vacancy Ensembles — •David O'Shea, Soham Pal, Toby Mitchell, and Helena Knowles — University of Cambridge

Dense ensembles of nitrogen-vacancy centres (NVs) in diamond offer a promising platform for investigating the intricate dynamics of disordered, strongly interacting spin systems and the interplay between different thermalizing processes in them. Floquet engineering can then be used to tune the interactions and on site disorder in the sample, allowing for exploration of predicted phenomena such as many-body-localisation and quantum many-body-scars.

The study of many-body phenomena in NV centres holds several advantages like (a) High Fidelity Control: NV centres provide a platform for global control of spins enabling manipulation of spin states and interactions, (b) Scalability: Dense NV ensembles offer a scalable platform for studying large-scale many-body systems, (c) Coupling to different spin baths: NV ensembles can be coupled to other spin baths, enabling exploration of non-equilibrium dynamics in open systems. Our research aims to elucidate the thermalization dynamics of these complex coupled systems by systematically tuning the disorder and dimensionality of the NV ensemble using a state-of-the-art home-build AFM setup integrated in a confocal setup.

Keywords: Nitrogen vacancies; thermalisation; many body dynamics; disorder; Floquet engineering