Strong interaction effects in nanostructures

Correlation effects originating from strong interaction between charge carriers confined to low-dimensional nanostructures (quantum dots, quantum wires, quasi-one-dimensional organic systems) are studied theoretically, focusing on the consequences of the coupling of carriers to lattice fluctuations and/or light. A detailed understanding of such structures is crucial for the future technical exploitation in, e.g., optoelectronics, molecular electronics, quantum optics, quantum computing and quantum cryptography. Furthermore, low-dimensional systems with confined carriers represent extremely interesting samples to study many-body effects and to test and develop new models and methods, also applicable to other problems in condensed matter physics. In this work, unbiased, state-of-the-art numerical methods will be used which yield exact results in practically all parameter regimes.