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Building the World’s First Universal Photonic Quantum Computer | Dr.-Ing. Stefan Hengesbach, CEO, QuiX Quantum

Posted on by inknuts
15
Aug

Building the World’s First Universal Photonic Quantum Computer | Dr.-Ing. Stefan Hengesbach, CEO, QuiX Quantum

  • Childhood curiosity sparked by electronics kits and early computers
  • Influence of his engineer father and a family rooted in engineering

Podcast

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Overview

Dr.-Ing. Stefan Hengesbach, CEO of QuiX Quantum, joins TBCY for an in-depth conversation about his journey in photonics and quantum computing, the unique advantages of his company’s approach, and the broader future of quantum technology. Explore the highlights of the episode, landmark moments in Stefan’s career, and his perspective on the global race for quantum supremacy.

01:05 | How Did Early Experiences Shape Dr. Hengesbach’s Career?

  • Childhood curiosity sparked by electronics kits and early computers
  • Influence of his engineer father and a family rooted in engineering
  • Fascination with the fundamental nature of light during his school and university years
  • Transition from mechanical engineering to advanced work in lasers and optics

06:33 | What Is the Value of the Fraunhofer Institute in a Science Career?

  • Seven years spent learning from brilliant physicists and engineers
  • Experience with fiber and diode lasers and application-focused projects
  • An international internship in the US and innovative problem-solving with limited resources

08:18 | How Did the Leap into Quantum Begin?

  • Shift from industrial lasers at TRUMPF to sales and customer-focused learning
  • Launching a quantum startup within TRUMPF, targeting quantum sensing for automotive and other applications
  • Realignment of the startup toward neuromorphic and optical computing and why that direction was not the right fit for Stefan

12:02 | What Makes Photonic Quantum Computing So Challenging?

  • Differences between quantum sensing and quantum computing, including single photons versus ensembles
  • Technical hurdles involving the need for indistinguishable single photons and skepticism about the feasibility of photonic quantum computing
  • The importance of breakthroughs in low-loss silicon nitride integrated photonics

19:37 | How Does QuiX Quantum Stand Out Among Global Rivals?

  • Comparison with Xanadu, PsiQuantum, and other photonic quantum computing companies
  • Advantages of photonic quantum computing, including photon stability, scalability, and the use of telecom infrastructure
  • Universal quantum computing through measurement-based methods versus gate-based approaches
  • Approaches to error correction, including photon loss and indistinguishability, supported by proprietary photon-distillation technology

24:26 | What Are the Technical Innovations Behind QuiX Quantum?

  • End-to-end loss-minimization strategies and system compactness
  • Differentiation between continuous-variable (CV) and discrete-variable (DV) architectures
  • Plug-and-play design for data centers and reduced dependence on massive cryogenic infrastructure

32:20 | Who Is Interested in This Technology, and What Are the Applications?

  • Interest from financial services in applications such as portfolio optimization and Monte Carlo algorithms
  • Partnerships with automotive and logistics industries, including Arena 2036
  • The race toward logical qubits for broader applications such as Shor’s algorithm, quantum chemistry, and optimization problems

RESOURCES

Learn more about Dr.-Ing. Stefan Hengesbach: LinkedIn

ENJOYED THIS PODCAST?

At Fraunhofer, Stefan Hengesbach learned the realities of building lasers in the real world—sometimes MacGyvering parts from old stereos to pulse lasers for experiments. By the end of his journey there, he was helping shape the future of laser technology with ingenuity, resourcefulness, and even a trip to RadioShack.

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Profile

  • Photonics & Quantum Computing: Explores Stefan Hengesbach’s journey and expertise in the rapidly evolving world of photonics and quantum technology.
  • QuiX Quantum’s Innovation: Highlights the company’s unique photonic approach to building powerful quantum computing systems.
  • Career Milestones: Reflects on the landmark moments and experiences that shaped Stefan’s professional journey.
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