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Many-body Quantum Dynamics

Cavendish Laboratory

Studying at Cambridge

 

Research

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

 

Dynamics

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

Quantum Walk on fractal

Jul 05, 2018

The first result from our brand-new setup on optical Quasicrystals is on the Arxiv.

Postdoc positions available

Jun 28, 2018

We are inviting applications for two Postdoc positions in the Many-Body Quantum Dynamics group.

K39 BEC

May 16, 2018

We achieved Bose-Eintein condensation of K39 atoms.

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).