Prof. Dr. Christoph Wildfeuer

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Prof. Dr. Christoph Wildfeuer obtained his doctorate in quantum technologies from the University of Siegen in 2003, after studying physics in Bonn and Siegen. His postdoctoral work in the USA involved research at esteemed institutes, focusing on quantum sensors and cryptography. Joining the FHNW School of Engineering in Brugg-Windisch in 2015, he has since been dedicated to educating future engineers and was appointed Professor for Sensor Technology in 2019. Currently, Prof. Wildfeuer leads innovative R&D projects in quantum information and post-quantum cryptography, which include the application of the Kyber post-quantum algorithm on embedded systems, the enhancement of wireless technology security, and the development of secure satellite communications protocols. His scholarly work, as both an author and co-author, has contributed to the academic discourse in the field.

• Studied Physics and Astronomy at University of Siegen and Bonn
• Diploma in Physics, (Dipl.-Phys., equivalent of M.S.) (1999), specializing in Electronics, Mathematics and Quantum-Technologies at University of Siegen
• Doctorate Degree in Physics (Dr. rer. nat., equivalent of Ph.D.) (2003), specializing in Quantum-Information at University of Siegen
• 2. Staatsexamen (2006), High-School Teacher for Physics and Mathematics in Germany and Switzerland
• Research Associate for DARPA Quantum-Sensors Project and Interferometry at Louisiana State University, Department of Physics and Astronomy, Baton Rouge LA, USA,
• Visiting Researcher at NIST at the Optical Technology Division in Gaithersburg MD, USA
• Research Associate for DARPA Information in a Photon (InPho) Project and Quantum Electronics at Duke University, Department of Physics, Durham NC, USA

Complete list of publications: Google Scholar

Selected publications:

• Esther Hänggi, Bernhard Tellenbach, Christoph Wildfeuer, Quantum- and post-quantum cryptography, https://technology-outlook.satw.ch/en/technologies-in-focus/quantum-and-post-quantum-cryptography (2023).
• Ayesha Reezwana, Tanvirul Islam, Xueliang Bai, Christoph Wildfeuer, Alexander Ling, James Grieve, Generating Quantum Random Numbers Using Entanglement in Low Earth Orbit, accepted for publication in Nature Communications 2022, preprint: doi.org/10.21203/rs.3.rs-690179/v1
• Simon M. Burkhardt, Willi Meier, Christoph F. Wildfeuer, Ayesha Reezwana, Tanvirul Islam, Alexander Ling, First demonstration of a post-quantum key-exchange with a nano satellite, 2022, arxiv.org/pdf/2206.00978.pdf
• A. Reezwana, T. Islam, J. A. Grieve, C. F. Wildfeuer, and A. Ling, "Generating Quantum Random Numbers on a CubeSat (SpooQy-1)," in Conference on Lasers and Electro-Optics, OSA Technical Digest (Optical Society of America, 2020), paper ATu3S.3.
  DOI: https://doi.org/10.1364/CLEO_AT.2020.ATu3S.3
• A. Villar, A. Lohrmann, X. Bai, T. Vergoossen, R. Bedington, C. Perumangatt, H. Y. Lim, T. Islam, A. Reezwana, Z. Tang, R. Chandrasekara, S. Sachidananda, K. Durak, C. F. Wildfeuer, D. Griffin, D. K. L. Oi, A. Ling," Entanglement demonstration on board a nano-satellite,” Optica, 7, 7, 734-737 (2020).
  DOI: https://doi.org/10.1364/OPTICA.387306.
• Alexander Ling, Christoph Wildfeuer, Valerio Scarani, A note on quantum safe symmetric key growing, https://arxiv.org/abs/1707.02766 , (2017).
• Thomas Brougham, Christoph F. Wildfeuer, Stephen M. Barnett, and Daniel J. Gauthier, The information of high-dimensional time-bin encoded photons, The European Physical Journal D, https://doi.org/10.1140/epjd/e2016-70357-4 , 20. Oct. (2016).
• Tang Zhongkan, Rakhitha Chandrasekara, Yau Yong Sean, Cliff Cheng, Christoph Wildfeuer, Alexander Ling, Near-space flight of a correlated photon system, Nature, Scientific Reports, Volume 4, 15. (2014). http://dx.doi.org/10.1038/srep06366
• Christoph F. Wildfeuer, Managing Multistate Quantum Entanglement, Science 328, 835, http://science.sciencemag.org/content/328/5980/835 , 14. May (2010).
• Pearlman, A. Ling, E. A. Goldschmidt, C. F. Wildfeuer, J. Fan, and A. Migdall, Enhancing image contrast using coherent states and photon number resolving detectors, Opt. Express 18, 6033 (2010).
• Christoph F. Wildfeuer, Aaron J. Pearlman, Jun Chen, Jingyun Fan, Alan Migdall, and Jonathan P. Dowling, Resolution and sensitivity of a Fabry-Perot interferometer with a photon-number-resolving detector, Phys. Rev. A 80, 043822 (2009).
• Sean D. Huver, Christoph F. Wildfeuer, and Jonathan P. Dowling, Entangled Fock states for robust quantum optical metrology, imaging, and sensing, Phys. A 78, 063828 (2008).
• Christoph F. Wildfeuer, Austin P. Lund, and Jonathan P. Dowling, Strong violations of Bell-type inequalities for path-entangled number states, Phys. A 76, 052101 (2007).

• Secure future: Quantum-safe encryption system for corporate networks and internet applications. Funded by Stiftung FHNW. https://www.stiftungfhnw.ch/sichere-zukunft

• Grange Rachel (ETHZ), Lecomte Steve (CSEM), Wildfeuer Christoph (FHNW): Maturing and scaling up fabrication of lithium-niobate-based integrated photonic sensors – LINIOS https://data.snf.ch/grants/person/760004

• In the framework of the ARTES Competitiveness & Growth strategic program the European Space Agency (ESA) endorses the innovative End-to-End Quantum-Safe Security for Satellite Data Links (E2EQSS) project to shield satellite communications from emergent quantum threats https://www.fhnw.ch/en/about-fhnw/schools/school-of-engineering/esa-project-quantum-safe-satellite-data-links