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Many-body Quantum Dynamics

Cavendish Laboratory

Studying at Cambridge



More is different

We are studying many-body phenomena at the interface between quantum optics and solid state physics.

Following a statement by P.W. Anderson, "More is Different", genuine many-body phenomena are emergent phenomena that only appear when many particles come together, typical examples being superfluidity or magnetism.


Ultracold Atoms in optical lattices

We study many-body phenomena using ultracold atoms, that is Bose-Einstein condensates and degenerate Fermi gases, which we load into optical lattices. These periodic optical potentials are analogous to the electrostatic potential felt by electrons in a conventional solid. Thereby, we effectively build a quantum simulator for condensed matter physics, where we can study many-body physics in a very clean and precisely controlled system and have all the tools from quantum optics at our disposal.


3D Lattice
3D Lattice structure generated by three retroreflected laser beams



In particular, we can follow the dynamics of the system in real time and observe its non-equilibrium dynamics, which is typically an even richer problem than the equilibrium states.

In addition, this toolbox enables us to synthesize genuinely new many-body systems and create novel effects.

  • Strongly-correlated systems

  • Topological systems

  • Band-structure engineering

  • Out-of-equilibrium dynamics

  • Quantum quenches

  • Disordered Systems / Many-body localization


RSS Feed Latest news

Lecture course on Quantum Simulations

Jan 19, 2018

Today our new lecture course on Quantum Simulations starts in Cambridge for the first time

Slow Dynamics near the Many-Body Localization Transition

Dec 31, 2017

We could observe the (critical) slowing down of the relaxation dynamics close to the MBL transition and our results were now published in PRL (1D) and PRX (2D).

Floquet Heating in PRL

Nov 17, 2017

Our latest work on Interaction Dependent Heating and Atom Loss in a Periodically Driven Optical Lattice has been published as an Editor's suggestion in PRL

Proceeding on MBL published by Royal Society

Nov 09, 2017

The proceedings of our Royal Society meeting on the Breakdown of ergodicity in quantum systems has been published in the Philosophical Transactions of the Royal Society and contains many excellent reviews on various aspects of Many-body localization (MBL).

First BEC

Apr 24, 2017

We achieved Bose-Einstein condensation of Rb87 atoms.