Hybrid Systems

Hybrid systems aim to couple two properties to gain novel functionalities. They are the basis of transducers and are presently considered for various quantum applications. Our research focusses on achieving strong coupling between various subsystems, such as magnons and photons, magnons and phonons, photons and phonons, as well as coupled excitations of the same nature. The dynamics of the hybrid system can vastly differ from from the behavior of their constituents, which is highly interesting from fundamental science perspective and is of key importance for applications based on hybrid concepts.
ICON project
Recent projects
Hans Huebl, Fiona Sosa, Matthias Grammer, Johannes Weber, Stephan Geprägs, Matthias Opel, Matthias Althammer
Hans Huebl, Johannes Weber, Patricia Oehrl, Stephan Geprägs
Hans Huebl, Thomas Luschmann, Korbinian Rubenbauer, Rudolf Gross, Tahereh Parvini, Achim Marx
ICON publication
Recent publications
Johannes Weber, Manuel Müller, Mikhail Cherkasskii, Stephan Geprägs, Rudolf Gross, Christian H. Back, Sebastian T. B. Goennenwein, Silvia Viola Kusminskiy, Matthias Althammer, Hans Huebl
Research Article | arXiv:2605.26997
Thomas Luschmann, Tahereh Sadat Parvini, Lukas Niekamp, Achim Marx, Rudolf Gross, Hans Huebl
Research Article | Nature Communications 17, 6541  (2026)
Preprint: arXiv:2512.05873
Oleksandr Dobrovolskiy, Hermann Suderow, Francesco Tafuri, Annica M Black-Schaffer, Jose L Lado, Asle Sudbø, Daniela Stornaioulo, Chuan Li, Anna E Böhmer, Lan Maria Tran, Andrzej J Zaleski, Adrian Crisan, Massimiliano Polichetti, Armando Galluzzi, Ali Gencer, Bernd Aichner, Neven Barišić, Wolfgang Lang, Tomas Samuely, Martin Gmitra, Tristan Cren, Mateo Calandra, Peter Samuely, Jeroen Custers, Rosa Cordoba, Vladimir M Fomin, Nicola Poccia, Pavol Szabó, Fabrizio Porrati, Gleb Kakazei, Jan Aarts, Jason Robinson, Javier E Villegas, Matthias Althammer, Hans Huebl, Akashdeep Kamra, Mathias Weiler, J Hugo Dil, Daniil Evtushinsky, Beena Kalisky, Yonathan Anahory, Simon Bending, Peter Liljeroth, Abdou Hassanien, Isabel Guillamón, Edwin Herrera, Alejandro V Silhanek, Joris Van de Vondel, Anna Palau, Ilya Charaev, Maria Sidorova, Floriana Lombardi, Thilo Bauch, Cheryl Feuillet-Palma, Vasily Stolyarov, Dimitri Roditchev, Vladimir M Krasnov, Benedikt Hampel, María José Martínez-Pérez, Javier Sesé, Dieter Koelle, Stefano Poletto, Alessandro Bruno, Davide Massarotti
Research Article | Superconductor Science and Technology 39, 023502  (2026)
Shivangi Dhiman, K. Rubenbauer, T. Luschmann, A. Marx, A. Metelmann, H. Huebl
Research Article | Nature Communications 17, 4560  (2026)
Preprint: arXiv:2510.01775
P. Oehrl, F. Fesquet, K. E. Honasoge, M. Handschuh, A. Marx, R. Gross, K. G. Fedorov, H. Huebl
Research Article | arXiv:2512.17490

At the Walther-Meissner-Institute we pioneered research in the direction of strong magnon-photon interaction, which is key to investigate magnons on the quantum level, but also gives deep insight in the hybridization of magonic and phonic states, an aspect which we have intensely researched by combining this hybrid system with electical readout techniques. 

Spin ensembles based on paramagnetic centers are complementary to their exchange coupled counterpart. Although, the coupling is less intense, they still can be operated in the strong coupling regime. Due to their extreme coherence times, these spin systems are discussed for quantum memory or quantum transduction applications. 

In addition, we study magnon-phonon hybrids based on acoustic resonators and magnetic thin films, as well as coupled nano-string resonator networks.