Recent Publications

Pauli crystal superradiance
Daniel Ortuño-Gonzalez; Rui Lin; Justyna Stefaniak; Alexander Baumgärtner; Gabriele Natale; Tobias Donner; R. Chitra
Arxiv preprint 2505.02837
ArXiv: 🔗 link
Bandstructure of a coupled BEC-cavity system: effects of dissipation and geometry
David Baur; Simon Hertlein; Alexander Baumgärtner; Justyna Stefaniak; Tilman Esslinger; Gabriele Natale; Tobias Donner
Arxiv preprint 2504.17730
ArXiv: 🔗 link
Synchronization of Quasi-Particle Excitations in a Quantum Gas with Cavity-Mediated Interactions
Gabriele Natale; Alexander Baumgärtner; Justyna Stefaniak; David Baur; Simon Hertlein; Dalila Rivero; Tilman Esslinger; Tobias Donner
Arxiv preprint 2504.17731
ArXiv: 🔗 link
Quantum circuits based on topological pumping in optical lattices
Zijie Zhu; Yann Kiefer; Samuel Jele; Marius Gächter; Giacomo Bisson; Konrad Viebahn; Tilman Esslinger
Arxiv preprint 2409.02984
ArXiv: 🔗 link
Galilei covariance of the theory of Thouless pumps
Tilman Esslinger; Gian Michele Graf; Filippo Santi
Arxiv preprint 2408.14579
ArXiv: 🔗 link
Dissipative realization of Kondo models
Martino Stefanini; Yi-Fan Qu; Tilman Esslinger; Sarang Gopalakrishnan; Eugene Demler; Jamir Marino
Arxiv preprint 2406.03527
ArXiv: 🔗 link
Stability and decay of subradiant patterns in a quantum gas with photon-mediated interactions
Alexander Baumgärtner; Simon Hertlein; Tom Schmit; Davide Dreon; Carlos Máximo; Xiangliang Li; Giovanna Morigi; Tobias Donner
Arxiv preprint 2407.09227
ArXiv: 🔗 link







Welcome to
Prof. Tilman Esslinger's
Quantum Optics Group





In our research we use ultracold atoms to synthetically create key models in quantum many-body physics.

The properties of the trapped quantum gases are governed by the interplay between atomic motion and a well characterized interaction between the particles. This conceptual simplicity is unique in experimental physics and provides a direct link between the experiment and the model describing the system. It enables us to shine new light on a wide range of fundamental phenomena and address open challenges.

We explore the physics of quantum phase transitions and crossovers, low-dimensional systems and non-equilibrium dynamics, and thereby establish the basis for quantum simulation of many-body Hamiltonians.

For example, by loading a quantum degenerate gas of potassium atoms into the periodic potential of an optical lattice we realize Hubbard models with atoms and access superfluid, metallic and Mott-insulating phases. A many-body system with infinitely long-range interactions is formed by trapping a Bose-Einstein condensate inside an optical cavity, which has allowed us to observe the Dicke quantum phase transition from a normal to a superradiant phase. We also work on extending the concepts of quantum simulations to device-like structures connected to atomic reservoirs, using a combination of high-resolution microscopy and transport measurements. We further work on offering our quantum simulations as a service, specifically on the Quantum Simulation Transport Platform (QSTP), the Extended Fermi-Hubbard Quantum Simulation Platform (EFHQSP) and our Matter-Light Quantum Simulation Platforms (MLQSPs).


We acknowledge funding from SNF and ETH Zürich, NCCR QSIT, SBFI QUIC and the European Union (ERC TransQ, ERC Marie Curie TopSpiD, ETN ColOpt).

Funding

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