Quantum systems, quantum devices and quantum sensing are at an ever-high of scientific, and public attraction for their fundamental relevance and potential use in different technologies. The reproducible manufacturing and probing of addressable quantum systems built from atomic and molecular units hosting electron and spin systems on surfaces has made particular progress. Breakthrough experiments involved the investigation of clusters and 1D and 2D arrays of spin-bearing atoms or molecules and the presence and absence of Majorana bound states or YSR states on superconductors. Such atomically well-defined model "molecules", including artificial atoms, supermolecules and artificial molecules supported on and/or coupled to single and multiple units of low-dimensional materials can be addressed and probed individually at surfaces. They provide ideal objects of study for fundamental investigations, experiment, and theory correlation and towards better and future device technology.
New experimental methods have recently become available on the basis of local spectroscopic techniques and non-local photoelectron spectroscopies. Electronic and nuclear quantum states can now be manipulated at specific single atom sites embedded in a larger entity with specific interatomic bonds and also specific interaction with an underlying substrate. These advances bring new opportunities to explore and exploit quantum and spin states and their dissipation in atoms and molecules at surfaces for sensing, information storage, and information processing in (logic) devices.
The conference will cover a broad range of phenomena occurring with atomic and molecular scale assemblies on surfaces: This in particular includes the quantum effects of coherence and entanglement, as well as different techniques to probe and manipulate electronic states and spins on surfaces. The following topics are considered of particular interest:
Atoms and molecules supported on surfaces can host protected quantum systems to mimic spintronic components with significant advantages in terms of miniaturization, energy consumption and speed. There are, however, large gaps in our knowledge that are related to the assembly and operation of larger architectures and towards their upscaling and integration with, e.g., conventional digital electronics.
Controlling the spin-dependent electronic structure of atomic and molecular-scale precision-architectures is essential for their integration into solid-state devices and thereby is a contribution towards the future of information and communication technologies.
Photon, photoelectron and local probe microscopies and spectroscopies play a crucial role in the investigation and operation of the characteristic quantum states. At the spinQueST conference we shall report on the present status and shape further interdisciplinary efforts in order to (1) overcome remaining limitations in the engineering of quantum states on solid surfaces, (2) find novel coherent surface systems, and (3) develop strategies for the upscaling of quantum operations from a single device to integrated systems.
The outline of the conference schedule can be found here.
There is emerging international interest in quantum architectures, in particular concerning coupled spin systems at surfaces and interfaces. The present and onward developments across the globe shall be presented at the workshop. Scientific discussions shall accelerate the progress and enhance collaborations between scientists using tool-sets from different scientific fields, namely atomic and condensed matter physics, materials science, chemistry, and quantum engineering. The success of the earlier SpinMol, QMol and molQueST conferences lie the foundation for inspiring, enchanting and fruitful forward looking discussions on this dynamic field of science and its emergence into technological applications.
Participating researchers, in particular the young and newly interested in the field shall experience a privileged exposure to this rapidly developing field of knowledge and get early access to the most recent results. This will stimulate them to take a decisive role in shaping future research and form consortia for scientific activities on this emerging topic of technological relevance.