RESEARCH Working Group Grifoni

Picture from 'Mind Sights' by Roger Shepard

We are a theoretical group interested in the dynamical properties (transient and stationary) of open quantum systems out-of-equilibrium. These include on the one hand quantum transport properties of hybrid nanojunctions, molecular systems in STM configuration or complex quantum dots. On the other hand, the dissipative dynamics of (effective) quantum particles interacting with a surroundings. In recent years we have developed a many-body theory of quantum transport based on the reduced density matrix approach, which we have applied to investigate transport in carbon nanotube based nanojunctions and molecules. Also, we have used non-perturbative field theory approaches to investigate strongly correlated systems in the Kondo regime and interacting one-dimensional systems. Path integral approaches have recently been used to investigate decoherence and relaxation properties of superconducting qubits interacting with an electromagnetic environment, as well as strongly interacting impurity systems.

• Quantum transport in nanostructures

• Quantum dissipative systems

• Funding