Title: Unraveling the Structural Secrets of Single Quantum Dots: A Seed for Quantum Technology

Speaker: Dr. Arka Bikash Dey, Deutsches Elektronen-Synchrotron, Germany

Abstract: At the heart of the second quantum revolution lie the pivotal concepts of single and entangled quantum bits, offering tantalizing prospects for practical applications. Realizing this potential necessitates the development of individual quantum objects on solid-state platforms. Among these, epitaxially grown self-assembled semiconductor quantum dots (QDs) stand out as a promising class of nanomaterials. They exhibit atom-like optical properties, making them ideal candidates for single and entangled photon sources, and they play indispensable roles in various technological applications, especially in quantum technology. The non-destructive exploration of the structural intricacies of quantum dots, elucidating their composition, strain, and crystalline quality, is made feasible through the emerging power of X-ray-based microscopy and imaging techniques. The symbiotic relationship between X-ray imaging and quantum dot research serves as the cornerstone for advancing quantum technology, laying the groundwork for the development of innovative quantum devices and applications. In this colloquium, we delve into the pivotal role of the structure of quantum dots in the seamless integration into the realm of next-generation quantum technologies.