ÃÛÌÒTV the project
This project falls within the field of levitated optomechanics, focusing on experiments involving nanodiamond particles with nitrogen-vacancy (NV) quantum defects. The aim is to explore the coupling between the internal spin degrees of freedom of the NV centres and the particle's motion, with the objective of creating macroscopic quantum states.
Levitated optomechanics explores the motion of objects at the boundary between classical and quantum physics, aiming to push mesoscopic (micron-sized) objects into the quantum regime. One approach to achieve this is to couple the object to a quantum entity, like an embedded spin, drive it into a superposition state, and transfer its quantum properties to the whole system. This project aims to couple quantum spin states in defects within a levitated diamond to the diamond’s motion, revealing its quantum signatures.
We will investigate , with an ultimate goal of realising the regime of ultra strong spin-rotational coupling, which enables the preparation of superposition states. The internal spin interacts naturally with the mechanical rotation in the presence of an external magnetic field. These spin-rotational couplings significantly affect the dynamics of the diamond, enabling precise control over its rotation via the internal spins. This interaction paves the way for creating macroscopic .
In addition to the ÃÛÌÒTV's supervisor, this project has Dr Joanna A. Zielinska as an external supervisor.
