AG Eisert

Quantum many-body theory, quantum information theory, and quantum optics

Prof. Dr. Jens Eisert

Dahlem Center for Complex Quantum Systems

Jens Eisert
Jens Eisert
AddressArnimallee 14
Room 1.3.06
14195 Berlin-Dahlem
OfficeAnnette Schumann-Welde, Room 1.3.11
EmailProf. Dr. Jens Eisert
Annette Schumann-Welde


Our group is concerned with research in quantum information theory, quantum optical implementations of quantum information ideas, and quantum many-body theory.

  • We ask what information processing tasks are possible using single quantum systems as carriers of information. On the one hand, we think about the mathematical-theoretical foundations of quantum information, specifically about the theory of entanglement and questions of tomography.
  • A main emphasis of our theoretical research is on the theory of quantum systems with many degrees of freedom, particularly in the condensed matter context, concerning their static properties, their efficient numerical simulation, as well as their quantum dynamics in non-equilibrium. Tensor networks play a special role here.
  • We are also involved in identifying quantum optical realizations of such ideas, specifically using light modes or cold atoms in optical lattices.

Characteristic for our work is to be guided by the rigor of mathematical physics, but at the same time to be pragmatically and physically motivated, which often leads to collaborations with experimentalists.

Non-equilibrium dynamics of strongly correlated quantum many-body systems

Quantum information theory

Quantum system identification, compressed sensing, and tomography

Tensor network approaches to solving condensed matter models

Mathematical physics

Correlations in condensed-matter systems

Quantum optics

Open quantum systems and opto-mechanics

For more recent publications and a complete list of older publications, see this link.