Dr. Markus Rambach's research interests are in the field of quantum optics, especially on single photon sources to create photonic qubits and qudits.
Markus was born and raised in a small alpine town in Austria, before doing his BSc and MSc at the University of Innsbruck (Austria). He did his undergrad in Physics, before completing an MSc in experimental quantum physics in the prestigious group of Pro. Rainer Blatt. Here, is where he met a young renegade Brit who had just completed his PhD in the research group of Prof. Andrew White at the University of Queensland. Inspired by the stories, Markus decided to have a look for himself and moved to Brisbane, where he completed his PhD with Andrew in 2017. After a short intermezzo for a Postdoc in Scotland, he moved back to Brisbane 2019 and has been a research fellow at UQ ever since. Markus' research interests are in the weird but beautiful world of quantum physics, where he is investigating ways to make the upcoming quantum internet a reality. Over the years he has worked with verious single photon platforms and used them for quantum information experiments. Recently he changed gear and is now investigating the infinitely-sized space of higher-dimensional quantum systems, so-called qudits.
Markus enjoys community engagement, be it as chair of the SMP Early and Mid-Career Academics Committee or as a member of the EQUS Public Engagement Committee. He particular likes the sparks in people's eyes when they start to understand a concept or idea.
Journal Article: Entanglement levels up
Romero, Jacquiline and Rambach, Markus (2022). Entanglement levels up. Optics and Photonics News, 33 (1), 32-39. doi: 10.1364/opn.33.1.000032
Journal Article: Robust and efficient high-dimensional quantum state tomography
Rambach, Markus, Qaryan, Mahdi, Kewming, Michael, Ferrie, Christopher, White, Andrew G. and Romero, Jacquiline (2021). Robust and efficient high-dimensional quantum state tomography. Physical Review Letters, 126 (10) 100402, 100402. doi: 10.1103/physrevlett.126.100402
Book: Narrowband single photons for light-matter interfaces
Rambach, Markus (2018). Narrowband single photons for light-matter interfaces. Cham, Switzerland: Springer Nature. doi: 10.1007/978-3-319-97154-4
Journal Article: Sub-megahertz linewidth single photon source
Rambach, Markus, Nikolova, Aleksandrina, Weinhold, Till J. and White, Andrew G. (2016). Sub-megahertz linewidth single photon source. APL Photonics, 1 (9) 096101, 096101. doi: 10.1063/1.4966915
High-dimensional entanglement sources on-chip
Doctor Philosophy
Qudits on chip
Doctor Philosophy
Sharing Secrets Using Quantum Physics
(2023) Master Philosophy
Romero, Jacquiline and Rambach, Markus (2022). Entanglement levels up. Optics and Photonics News, 33 (1), 32-39. doi: 10.1364/opn.33.1.000032
Robust and efficient high-dimensional quantum state tomography
Rambach, Markus, Qaryan, Mahdi, Kewming, Michael, Ferrie, Christopher, White, Andrew G. and Romero, Jacquiline (2021). Robust and efficient high-dimensional quantum state tomography. Physical Review Letters, 126 (10) 100402, 100402. doi: 10.1103/physrevlett.126.100402
Narrowband single photons for light-matter interfaces
Rambach, Markus (2018). Narrowband single photons for light-matter interfaces. Cham, Switzerland: Springer Nature. doi: 10.1007/978-3-319-97154-4
Sub-megahertz linewidth single photon source
Rambach, Markus, Nikolova, Aleksandrina, Weinhold, Till J. and White, Andrew G. (2016). Sub-megahertz linewidth single photon source. APL Photonics, 1 (9) 096101, 096101. doi: 10.1063/1.4966915
Narrowband single photons for light-matter interfaces
Rambach, Markus (2018). Narrowband single photons for light-matter interfaces. Cham, Switzerland: Springer Nature. doi: 10.1007/978-3-319-97154-4
Efficient Quantum State Tracking in Noisy Environments
Rambach, Markus, Youssry, Akram, Tomamichel, Marco and Romero, Jacquiline (2022). Efficient Quantum State Tracking in Noisy Environments. Quantum Science and Technology, 8 (1) 015010, 1-9. doi: 10.1088/2058-9565/aca049
Romero, Jacquiline and Rambach, Markus (2022). Entanglement levels up. Optics and Photonics News, 33 (1), 32-39. doi: 10.1364/opn.33.1.000032
A bright source of telecom single photons based on quantum frequency conversion
Morrison, Christopher L., Rambach, Markus, Koong, Zhe Xian, Graffitti, Francesco, Thorburn, Fiona, Kar, Ajoy K., Ma, Yong, Park, Suk-In, Song, Jin Dong, Stoltz, Nick G., Bouwmeester, Dirk, Fedrizzi, Alessandro and Gerardot, Brian D. (2021). A bright source of telecom single photons based on quantum frequency conversion. Applied Physics Letters, 118 (17) 174003, 174003. doi: 10.1063/5.0045413
Robust and efficient high-dimensional quantum state tomography
Rambach, Markus, Qaryan, Mahdi, Kewming, Michael, Ferrie, Christopher, White, Andrew G. and Romero, Jacquiline (2021). Robust and efficient high-dimensional quantum state tomography. Physical Review Letters, 126 (10) 100402, 100402. doi: 10.1103/physrevlett.126.100402
Coherent dynamics in quantum emitters under dichromatic excitation
Koong, Z. X., Scerri, E., Rambach, M., Cygorek, M., Brotons-Gisbert, M., Picard, R., Ma, Y., Park, S. I., Song, J. D., Gauger, E. M. and Gerardot, B. D. (2021). Coherent dynamics in quantum emitters under dichromatic excitation. Physical Review Letters, 126 (4) 047403. doi: 10.1103/physrevlett.126.047403
Highly energy-tunable quantum light from moiré-trapped excitons
Baek, H., Brotons-Gisbert, M., Koong, Z. X., Campbell, A., Rambach, M., Watanabe, K., Taniguchi, T. and Gerardot, B. D. (2020). Highly energy-tunable quantum light from moiré-trapped excitons. Science Advances, 6 (37) eaba8526, 1-6. doi: 10.1126/sciadv.aba8526
Fundamental limits to coherent photon generation with solid-state atomlike transitions
Koong, Z. X., Scerri, D., Rambach, M., Santana, T. S., Park, S., Song, J. D., Gauger, E. M. and Gerardot, B. D. (2019). Fundamental limits to coherent photon generation with solid-state atomlike transitions. Physical Review Letters, 123 (16) 167402. doi: 10.1103/physrevlett.123.167402
Hectometer revivals of quantum interference
Rambach, Markus, Lau, W. Y. Sarah, Laibacher, Simon, Tamma, Vincenzo, White, Andrew G. and Weinhold, Till J. (2018). Hectometer revivals of quantum interference. Physical Review Letters, 121 (9) 093603, 093603. doi: 10.1103/PhysRevLett.121.093603
Sub-megahertz linewidth single photon source (vol 1, 096101, 2016)
Rambach, Markus, Nikolova, Aleksandrina, Weinhold, Till J. and White, Andrew G. (2017). Sub-megahertz linewidth single photon source (vol 1, 096101, 2016). Apl Photonics, 2 (11), 1-2. doi: 10.1063/1.5005838
Sub-megahertz linewidth single photon source
Rambach, Markus, Nikolova, Aleksandrina, Weinhold, Till J. and White, Andrew G. (2016). Sub-megahertz linewidth single photon source. APL Photonics, 1 (9) 096101, 096101. doi: 10.1063/1.4966915
Universal digital quantum simulation with trapped ions
Lanyon, B. P., Hempel, C., Nigg, D., Mueller, M., Gerritsma, R., Zaehringer, F., Schindler, P., Barreiro, J. T., Rambach, M., Kirchmair, G., Hennrich, M., Zoller, P., Blatt, R. and Roos, C. F. (2011). Universal digital quantum simulation with trapped ions. Science, 334 (6052), 57-61. doi: 10.1126/science.1208001
Robust and efficient high-dimensional quantum state tomography
Rambach, Markus, Qaryan, Mahdi, Kewming, Michael, Ferrie, Christopher, White, Andrew G. and Romero, Jacquiline (2021). Robust and efficient high-dimensional quantum state tomography. Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), Munich, Germany, 21-25 June 2021. New York, NY, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/CLEO/Europe-EQEC52157.2021.9541925
Graffitti, Francesco, Morrison, Christopher, Rambach, Markus, Koong, Zhe Xian, Thorburn, Fiona, Ma, Y., Park, S. I., Song, J. D., Kar, Ajoy K., Fedrizzi, Alessandro and Gerardot, Brian D. (2021). Coherent frequency-conversion of quantum dot photons to the telecommunication C-band for quantum communication applications. Conference on Lasers and Electro-Optics (CLEO), San Jose, CA United States, 9-14 May 2021. Piscataway, NJ United States: Institute of Electrical and Electronics Engineers.
Hectometer revivals of quantum interference
Rambach, M., Lau, W. Y. S., Laibacher, S., Tamma, V., White, A. G. and Weinhold, T. J. (2019). Hectometer revivals of quantum interference. 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO® /Europe-EQEC), Munich, Germany, 23-27 June 2019. Piscataway, NJ USA: Institute of Electrical and Electronics Engineers. doi: 10.1109/CLEOE-EQEC.2019.8871498
Sub-megahertz linewidth single photon source suitable for quantum memories
Rambach, Markus, Lau, Wing Yung Sarah, Nikolova, Aleksandrina, Weinhold, Till and White, Andrew (2017). Sub-megahertz linewidth single photon source suitable for quantum memories. 2017 Conference on Lasers and Electro-Optics, CLEO 2017, California, USA, May 14-19, 2017. NEW YORK: Institute of Electrical and Electronics Engineers . doi: 10.1364/CLEO_QELS.2017.FTh4E.5
Sub-megahertz linewidth single photon source suitable for quantum memories
Rambach, Markus, Lau, Wing Yung Sarah, Nikolova, Aleksandrina, Weinhold, Till and White, Andrew (2017). Sub-megahertz linewidth single photon source suitable for quantum memories. European Quantum Electronics Conference, EQEC 2017, Munich, Germany, 25-29 June 2017. Washington, DC USA: OSA - The Optical Society.
Narrowband Single Photons for Light-Matter Interfaces
Rambach, Markus (2017). Narrowband Single Photons for Light-Matter Interfaces. PhD Thesis, School of Mathematics & Physics, The University of Queensland. doi: 10.14264/uql.2017.994
High-dimensional entanglement sources on-chip
Doctor Philosophy — Associate Advisor
Other advisors:
Qudits on chip
Doctor Philosophy — Associate Advisor
Other advisors:
Demonstration of relativistic Bohmian trajectories of photons
Doctor Philosophy — Associate Advisor
Other advisors:
Quantum Nanophotonics
Doctor Philosophy — Associate Advisor
Other advisors:
Routers for quantum light
Doctor Philosophy — Associate Advisor
Other advisors:
Sharing Secrets Using Quantum Physics
(2023) Master Philosophy — Associate Advisor
Other advisors:
Encoding and Measuring Information in High-Dimensional Quantum States
(2022) Master Philosophy — Associate Advisor
Other advisors: