Recent Publications

Flat band transport and Josephson effect through a finite-size sawtooth lattice
Ville A. J. Pyykkönen; Sebastiano Peotta; Philipp Fabritius; Jeffrey Mohan; Tilman Esslinger; Päivi Törmä
Arxiv preprint 2101.04460 (2021)
ArXiv: 🔗 link
Interaction-assisted reversal of thermopower with ultracold atoms
Samuel Häusler; Philipp Fabritius; Jeffrey Mohan; Martin Lebrat; Laura Corman; Tilman Esslinger
Arxiv preprint 2010.00011 (2020)
ArXiv: 🔗 link
Measuring the dynamics of a first order structural phase transition between two configurations of a superradiant crystal
Xiangliang Li; Davide Dreon; Philip Zupancic; Alexander Baumgärtner; Andrea Morales; Wei Zheng; Nigel R. Cooper; Tobias Donner; Tilman Esslinger
Arxiv preprint 2004.08398 (2020)
ArXiv: 🔗 link
Suppressing dissipation in a Floquet-Hubbard system
Konrad Viebahn; Joaquìn Minguzzi; Kilian Sandholzer; Anne-Sophie Walter; Frederik Görg; Tilman Esslinger
Arxiv preprint 2003.05937 (2020)
ArXiv: 🔗 link
Continuous feedback on a quantum gas coupled to an optical cavity
Katrin Kroger; Nishant Dogra; Rodrigo Rosa-Medina; Marcin Paluch; Francesco Ferri; Tobias Donner; Tilman Esslinger
Arxiv preprint 1912.02505 (2020)
ArXiv: 🔗 link
New Journal of Physics, , (2020)
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).




07 October 2020
Welcome back Franco
After his semester project, Franco Rabec now continues working in the impact team as a master student. Welcome back!

01 October 2020
Simon joins the group
Simon Hertlein started his PhD in the Impact team. Welcome!

17 September 2020
Welcome Benjamin and Moritz
Moritz Fontboté-Schmidt and Benjamin van Ommen started their semester project in the lithium team. Welcome!

17 September 2020
Welcome Marius
Marius Gächter started his semester project in the cavity team. Welcome!

14 September 2020
Welcome back Philip
After his semester project, Philip Leindecker now continues working with the impact team as a master student. Welcome back!