Prof. Dr. Christoph Marquardt

Chair of Optical Quantum Technologies

Professors

Address

Staudtstraße 791058 Erlangen

Contact

Email: christoph.marquardt@fau.de
URL: www.oqt.nat.fau.de/

Posts

Publications

Choudhury V., Jaksch K., Lippl M., Frosz MH., Elser W., Leuchs G., Marquardt C., Joly N.:
Quantum-Limited Polarization Measurements in Twisted Photonic Crystal Fibers
CLEO: Fundamental Science 2025 (Long Beach, 4. May 2025 – 9. May 2025)
In: CLEO: Fundamental Science 2025 2025
DOI: 10.1364/CLEO_FS.2025.FF120_2
Eul S., Hiemstra T., Vermeer J., Struck J., Marquardt C.:
Universal Encoder for Phase-, Time-Bin- and Polarization-Based QKD Schemes
2025 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) (München, 23. June 2025 – 27. June 2025)
In: 2025 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) 2025
DOI: 10.1109/CLEO/Europe-EQEC65582.2025.11110196
Huang SH., Dirmeier T., Shafiee G., Laiho K., Strekalov DV., Aiello A., Leuchs G., Marquardt C.:
Indistinguishable Heralded Photon Pairs from a Whispering Gallery Resonator
2025 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) (, 23. June 2025 – 27. June 2025)
In: 2025 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) 2025
DOI: 10.1109/CLEO/Europe-EQEC65582.2025.11110509
Huang SH., Dirmeier T., Shafiee G., Laiho K., Strekalov DV., Aiello A., Leuchs G., Marquardt C.:
Indistinguishable MHz-narrow heralded photon pairs from a whispering gallery resonator
In: APL Photonics 10 (2025), Article No.: 056111
ISSN: 2378-0967
DOI: 10.1063/5.0263312
Mohageg M., Anastopoulos C., Brasher O., Gallicchio J., Hu BL., Jennewein T., Johnson S., Lin SY., Ling A., Lohrmann A., Marquardt C., Mazzarella L., Meister M., Newell R., Roura A., Vallone G., Villoresi P., Wörner L., Kwiat P.:
Towards satellite tests combining general relativity and quantum mechanics through quantum optical interferometry: progress on the deep space quantum link
In: EPJ Quantum Technology 12 (2025), Article No.: 78
ISSN: 2196-0763
DOI: 10.1140/epjqt/s40507-025-00370-1
Pudelko J., Bayraktar Ö., Vermeer J., Vill L., Khan I., Boxleitner W., Petscharnig S., Pacher C., Leuchs G., Marquardt C.:
Quantum Communication with Photonic Integrated Circuits on a CubeSat
2025 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2025 (Munich, DEU, 23. June 2025 – 27. June 2025)
In: 2025 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2025 2025
DOI: 10.1109/CLEO/EUROPE-EQEC65582.2025.11110274
Richter S., Eisemann L., Vural H., Bayraktar Ö., Jaksch K., Khan I., Eichhammer E., Sollner E., Marquardt C.:
Experimental Deployment of a 4-State Continuous-Variable QKD System with Rate-Adaptive Error Correction in an Urban Environment
2025 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) (, 23. June 2025 – 27. June 2025)
In: 2025 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), New York City: 2025
DOI: 10.1109/CLEO/Europe-EQEC65582.2025.11110834
Vermeer J., Pudelko J., Bayraktar Ö., Günthner K., Marquardt C.:
Photonic Integrated Phase Encoding Transmitter for Satellite QKD
2025 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) (München, 23. June 2025 – 27. June 2025)
In: 2025 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) 2025
DOI: 10.1109/CLEO/Europe-EQEC65582.2025.11109539

Huang SH., Dirmeier T., Shafiee G., Laiho K., Strekalov DV., Leuchs G., Marquardt C.:
Polarization-entangled photons from a whispering gallery resonator
In: npj Quantum Information 10 (2024), Article No.: 85
ISSN: 2056-6387
DOI: 10.1038/s41534-024-00876-z
Huang SH., Dirmeier T., Shafiee G., Laiho K., Strekalov DV., Leuchs G., Marquardt C.:
Polarization entanglement from a crystalline whispering gallery resonator
CLEO: Fundamental Science 2024 (Charlotte, 5. May 2024 – 10. May 2024)
In: CLEO 2024 2024
DOI: 10.1364/CLEO_FS.2024.FTh3R.5
Marquardt C.:
Recent Developments in Quantum Key Distribution
Optical Fiber Communication Conference 2024 (San Diego, 24. March 2024 – 28. March 2024)
In: Optical Fiber Communication Conference (OFC) 2024 2024
DOI: 10.1364/OFC.2024.M4H.5
Popp A., Sedlmeir F., Stiller B., Marquardt C.:
Eavesdropper localization for quantum and classical channels via nonlinear scattering
In: Optica Quantum 2 (2024), p. 21
ISSN: 2837-6714
DOI: 10.1364/OPTICAQ.502944

Geilen A., Popp A., Das D., Junaid S., Poulton CG., Chemnitz M., Marquardt C., Schmidt MA., Stiller B.:
Extreme thermodynamics in nanolitre volumes through stimulated Brillouin–Mandelstam scattering
In: Nature Physics (2023)
ISSN: 1745-2473
DOI: 10.1038/s41567-023-02205-1
Hacker B., Günthner K., Rößler C., Marquardt C.:
Phase-locking an interferometer with single-photon detections
In: New Journal of Physics 25 (2023), p. 113007
ISSN: 1367-2630
DOI: 10.1088/1367-2630/ad0752
Laiho K., Dirmeier T., Shafiee G., Marquardt C.:
Unfolding the Hong-Ou-Mandel interference between heralded photons from narrowband twin beams
In: New Journal of Physics (2023)
ISSN: 1367-2630
DOI: 10.1088/1367-2630/ace791
Popp A., Stiller B., Marquardt C.:
Localizing Eavesdroppers Inside a Quantum Channel Using Stimulated Brillouin Scattering
2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) (München, 26. June 2023 – 30. June 2023)
DOI: 10.1109/CLEO/Europe-EQEC57999.2023.10232821
Pudelko J., Bayraktar Ö., Khan I., Boxleitner W., Petscharnig S., Pacher C., Leuchs G., Marquardt C.:
Integrated Photonics for Quantum Communication on a Cubesat
2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) (München, 26. June 2023 – 30. June 2023)
In: 2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) 2023
DOI: 10.1109/CLEO/Europe-EQEC57999.2023.10231897

Belenchia A., Carlesso M., Bayraktar Ö., Dequal D., Derkach I., Gasbarri G., Herr W., Li YL., Rademacher M., Sidhu J., Oi DK., Seidel ST., Kaltenbaek R., Marquardt C., Ulbricht H., Usenko VC., Wörner L., Xuereb A., Paternostro M., Bassi A.:
Quantum physics in space
In: Physics Reports-Review Section of Physics Letters 951 (2022), p. 1-70
ISSN: 0370-1573
DOI: 10.1016/j.physrep.2021.11.004
Geilen A., Popp A., Das D., Junaid S., Poulton C., Chemnitz M., Marquardt C., Schmidt MA., Stiller B.:
Thermodynamic Control of Nanoliter Volumes of CS2 via Stimulated Brillouin Scattering
Frontiers in Optics, FiO 2022 (Rochester, NY, 17. October 2022 – 20. October 2022)
In: Optics InfoBase Conference Papers 2022
DOI: 10.1364/FIO.2022.JTu4A.59
URL: https://opg.optica.org/abstract.cfm?uri=FiO-2022-JTu4A.59
Hutterer M., Auer M., Baliuka A., Bayraktar Ö., Freiwang P., Gall M., Günthner K., Haber R., Janusch J., Knips L., Kobel P., Krauss M., Lemke NM., Marquardt C., Moll F., Papadopoulos C., Pudelko J., Rödiger B., Roubal C., Scharnagl J., Schilling K., Schmidt C., Weinfurter H.:
QUBE-II – Quantum Key Distribution with a CubeSat
73rd International Astronautical Congress, IAC 2022 (Paris, 18. September 2022 – 22. September 2022)
In: IAC-22-B4.9-GTS.5.5,x70823 2022
URL: https://elib.dlr.de/190981/1/IAC-22-B4.9-GTS.5.5×70823.pdf
Knips L., Auer M., Baliuka A., Bayraktar Ö., Freiwang P., Grünefeld M., Haber R., Lemke N., Marquardt C., Moll F., Pudelko J., Rödiger B., Schilling K., Schmidt C., Weinfurter H.:
QUBE – Towards Quantum Key Distribution with Small Satellites
Quantum 2.0, QUANTUM 2022 (Boston, MA, USA, 13. June 2022 – 16. June 2022)
In: Optics InfoBase Conference Papers 2022
URL: https://opg.optica.org/abstract.cfm?uri=quantum-2022-QTh3A.6
Laiho K., Dirmeier T., Schmidt M., Reitzenstein S., Marquardt C.:
Measuring higher-order photon correlations of faint quantum light: A short review
In: Physics Letters A 435 (2022)
ISSN: 0375-9601
DOI: 10.1016/j.physleta.2022.128059
Mohageg M., Mazzarella L., Anastopoulos C., Gallicchio J., Hu BL., Jennewein T., Johnson S., Lin SY., Ling A., Marquardt C., Meister M., Newell R., Roura A., Schleich WP., Schubert C., Strekalov DV., Vallone G., Villoresi P., Woerner L., Yu N., Zhai A., Kwiat P.:
The deep space quantum link: prospective fundamental physics experiments using long-baseline quantum optics
In: EPJ Quantum Technology 9 (2022), Article No.: 25
ISSN: 2196-0763
DOI: 10.1140/epjqt/s40507-022-00143-0
Rößler C., Günthner K., Hacker B., Leuchs G., Marquardt C., Leuchs G.:
A High-Rate Receiver for Satellite Quantum Key Distribution
Quantum 2.0, QUANTUM 2022 (Boston, MA, USA, 13. June 2022 – 16. June 2022)
In: Optics InfoBase Conference Papers 2022
URL: https://opg.optica.org/abstract.cfm?uri=quantum-2022-QTh3A.2

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