In this episode of ML4Q&A, hosts Chandana Rao and Patrick Geraghty speak with Professor Daqing Wang, ML4Q Junior Professor of Experimental Physics at the University of Bonn, about his journey through experimental quantum science and the challenges of building cutting-edge quantum technologies. Wang reflects on his early experience contributing to a landmark experiment that demonstrated quantum teleportation over 143 kilometers between the Canary Islands, describing what it was like to join such a high-impact project as a master’s student and the practical challenges involved in detecting fragile quantum signals over long distances.
The conversation explores the realities of running demanding quantum optics experiments, from dealing with noise and imperfect equipment to designing reliable single-photon sources using molecules trapped in microcavities at cryogenic temperatures. Wang also discusses the importance of interdisciplinary collaboration, particularly between physicists and chemists, in identifying and engineering molecules suitable for quantum devices.
Looking ahead, the episode considers how new tools, including artificial intelligence, could help design better quantum materials and accelerate the development of future quantum technologies. The result is a wide-ranging discussion about the past, present, and future of experimental quantum research.
Listen to the full podcast episode with Daqing Wang here or using your podcatcher.
00:00:00 Intro
00:02:10 Quantum Teleportation over 143 km
00:06:15 Scaling quantum communication experiments
00:07:44 Technical challenges in long-distnace quantum optics
00:13:00 The reality of running experimental physics lab
00:22:34 Single-photon sources with molecules
00:26:16 Why molecules are promising quantum emitters
00:32:07 Collaboration between Physics and Chemistry
00:39:41 Molecules and AI in quantum research
00:41:08 Reflections and outlook
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