Recent Publications

Reversal of quantised Hall drifts at non-interacting and interacting topological boundaries
Zijie Zhu; Marius Gächter; Anne-Sophie Walter; Konrad Viebahn; Tilman Esslinger
Arxiv preprint 2301.03583
ArXiv: 🔗 link
Science, 384, 317-320 (2024)
(open access link): 🔗 link
Dynamics of spin-momentum entanglement from superradiant phase transitions
Oksana Chelpanova; Kushal Seetharam; Rodrigo Rosa-Medina; Nicola Reiter; Fabian Finger; Tobias Donner; Jamir Marino
Arxiv preprint 2312.03827
ArXiv: 🔗 link
Quantum Fluctuation Dynamics of Dispersive Superradiant Pulses in a Hybrid Light-Matter System
Kevin Stitely; Fabian Finger; Rodrigo Rosa-Medina; Francesco Ferri; Tobias Donner; Tilman Esslinger; Scott Parkins; Bernd Krauskopf
Arxiv preprint 2302.08078
ArXiv: 🔗 link
Phys. Rev. Lett., , (2023)
Paper: 🔗 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 acknowledge funding from SNF and ETH Zürich, NCCR QSIT, SBFI QUIC and the European Union (ERC TransQ, ERC Marie Curie TopSpiD, ETN ColOpt).




02 May 2024
Mr. Fabian Finger successfully defended his PhD thesis.
Congratulations, well done !!!

26 Apri 2024
Mr. Alexander Baumgärtner successfully defended his PhD thesis.
Congratulations ... we are proud of you !!!

15 April 2024
Tommaso has started his PhD in the Lithium team.

15 March 2024
Jeffrey D. Mohan successfully defended his PhD thesis.
Congratulations Doctor - that was an awesome job !!!

4 March 2024
Yann Kiefer has started a PostDoc in the Lattice team

05 September 2023
Rodrigo Rosa - Medina successfully defended his PhD thesis.
Congratulations Dr. Rosa-Medina we are happy for you !!!

04 September 2023
Philipp Fabritius successfully defended his PhD thesis.
Congratulations, well done!!!



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