Periodic Reporting for period 1 - MiniAtomQ (Miniaturized Devices for Single-Atom Quantum Technologies)
Reporting period: 2023-07-01 to 2024-12-31
Single atoms provide an exceptional platform for many applications in quantum science and technology. However, the corresponding experiments typically have a large footprint, making it challenging to exploit the potential of single atoms in real life applications. In this project, we investigated the realization of robust, compact, and versatile single-atom manipulation setups based on microfabricated laser cooling devices and 3D-printed optical tweezers that can be directly integrated into fiber networks.
During the course of this project, we have manufactured 3D printed optical tweezer traps with our collaborators. This involved designing and printing suitable microscopic optics directly onto the tip of an optical fiber. Moreover, we have investigated designs for miniaturized atom cooling. This has significantly reduced the footprint of the experimental setup, with further optimization ongoing beyond the project lifetime. Similarly, extensive efforts have been invested into miniaturizing the laser systems for the experiment, reducing the number of necessary lasers to a single system, which has been realized using a compact, integrated diode laser system. An important ongoing effort was aimed at evaluating the IP situations and establishing further connections with industry and applied research groups.
Realizing reliable, integrated single atom trapping is expected to trigger a transition from large-scale research setups to small, portable devices that exploit single atoms, e.g. as sources of single photons for quantum communication applications. In order to fully exploit the potential of the miniaturized approach, further research will be targeted to ideally match the individual components to be used in the prototype.