Recent Publications


Phases, instabilities and excitations in a two-component lattice model with photon-mediated interactions
Leon Carl; Rodrigo Rosa-Medina; Sebastian D. Huber; Tilman Esslinger; Nishant Dogra; Tena Dubcek
Arxiv preprint 2210.11313 (2022)
ArXiv: 🔗 link
Superfluid current through a dissipative quantum point contact
Meng-Zi Huang; Jeffrey Mohan; Anne-Maria Visuri; Philipp Fabritius; Mohsen Talebi; Simon Wili; Shun Uchino; Thierry Giamarchi; Tilman Esslinger
Arxiv preprint 2210.03371 (2022)
ArXiv: 🔗 link
Breakdown of quantisation in a Hubbard-Thouless pump
Anne-Sophie Walter; Zijie Zhu; Marius Gächter; Joaquín Minguzzi; Stephan Roschinski; Kilian Sandholzer; Konrad Viebahn; Tilman Esslinger
Arxiv preprint 2204.06561 (2022)
ArXiv: 🔗 link
Topological pumping in a Floquet-Bloch band
Joaquín Minguzzi; Zijie Zhu; Kilian Sandholzer; Anne-Sophie Walter; Konrad Viebahn; Tilman Esslinger
Arxiv preprint 2112.12788 (2021)
ArXiv: 🔗 link
Self-oscillating geometric pump in a dissipative atom-cavity system
Davide Dreon; Alexander Baumgärtner; Xiangliang Li; Simon Hertlein; Tilman Esslinger; Tobias Donner
Arxiv preprint 2112.11502 (2021)
ArXiv: 🔗 link
Floquet engineering of individual band gaps in an optical lattice using a two-tone drive
Kilian Sandholzer; Anne-Sophie Walter; Joaquín Minguzzi; Zijie Zhu; Konrad Viebahn; Tilman Esslinger
Arxiv preprint 2110.08251 (2021)
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 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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