Recent Publications

Long-range interacting quantum systems
Nicolò Defenu; Tobias Donner; Tommaso Macrì; Guido Pagano; Stefano Ruffo; Andrea Trombettoni
Arxiv preprint 2109.01063 (2021)
ArXiv: 🔗 link
Dissipation-engineered family of nearly dark states in many-body cavity-atom systems
Rui Lin; Rodrigo Rosa-Medina; Francesco Ferri; Fabian Finger; Katrin Kroeger; Tobias Donner; Tilman Esslinger; R. Chitra
Arxiv preprint 2109.00422 (2021)
ArXiv: 🔗 link
Observing dynamical currents in a non-Hermitian momentum lattice
Rodrigo Rosa-Medina; Francesco Ferri; Fabian Finger; Nishant Dogra; Katrin Kroeger; Rui Lin; R. Chitra; Tobias Donner; Tilman Esslinger
Arxiv preprint 2108.11888 (2021)
ArXiv: 🔗 link
Emerging dissipative phases in a superradiant quantum gas with tunable decay
Francesco Ferri; Rodrigo Rosa-Medina; Fabian Finger; Nishant Dogra; Matteo Soriente; Oded Zilberberg; Tobias Donner; Tilman Esslinger
Arxiv preprint 2104.12782 (2021)
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 (2021)
ArXiv: 🔗 link
Physical Review X, 11, (2021)
Paper: 🔗 link
Cavity QED with Quantum Gases: New Paradigms in Many-Body Physics
Farokh Mivehvar; Francesco Piazza; Tobias Donner; Helmut Ritsch
Arxiv preprint 2102.04473 (2021)
ArXiv: 🔗 link
Advances in Physics, 70, (2021)
Paper: 🔗 link
First order phase transition between two centro-symmetric superradiant crystals
Xiangliang Li; Davide Dreon; Philip Zupancic; Alexander Baumgärtner; Andrea Morales; Wei Zheng; Nigel R. Cooper; Tobias Donner; Tilman Esslinger
Arxiv preprint 2004.08398 (2021)
ArXiv: 🔗 link
Physical Review Research, 3, (2021)
Paper: 🔗 link
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
Phys. Rev. B, , (2021)
Paper: 🔗 link
Interaction-assisted reversal of thermopower with ultracold atoms
Häusler Samuel; Fabritius Philipp; Mohan Jeffrey; Lebrat Martin; Corman Laura; Esslinger Tilman
Arxiv preprint 2010.00011 (2021)
ArXiv: 🔗 link
Physical Review X, 11, 021034 (2021)
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).

Funding

Labs+


News

17 September 2021
Xiangliang Li successfully defended his PhD thesis.
Congratulations!
15 September 2021
Nicola joins the group
Nicola Reiter started her PhD in the Cavity team. Welcome!
24 August 2021
Open Postdoc position
We have a Postdoc position opening in the Cavity lab. Visit our open positions page for more informations and do not hesitate to contact Prof. Esslinger!
18 August 2021
Tilman wins 2021 BEC Awards!
The Toptica BEC Senior Award 2021 has been awarded to Tilman “for his pioneering work on ultracold quantum gases in optical lattices, topological systems, quantum gases in cavities and quantum transport”. Congratulations!
01 June 2021
Simon joins the group
Simon Wili started his PhD in the Lithium team. Welcome!

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