Dr. Alexander Jantzen is co-founder of Aquark Technologies, where he has helped build and deploy accessible quantum sensing based on laser-cooled atoms. Under his leadership, the company has delivered several first-of-their-kind demonstrations in compact atom-based sensors. His work focuses on translating laboratory-grade performance into portable systems that can support applications such as environmental monitoring, medical diagnostics, and resilient navigation.

At Aquark, Jantzen promotes responsible and inclusive development practices, including thoughtful resource use and long-term socio-economic benefit. His efforts illustrate how early-stage quantum companies can integrate sustainable principles while advancing commercially relevant technologies. This approach is reflected in his engagement with public-private partnerships and in the development of educational kits and tools that widen access to quantum sensing concepts.

Beyond his technical contributions, Jantzen is an active science ambassador through OPTICA, where he works with students and early-career researchers. He leads workshops, lectures, and outreach programmes that demystify optical and quantum technologies and encourage participation in STEM. His combination of technical impact, community leadership, and commitment to widening participation positions him as a strong advocate for the next generation entering quantum science and technology.