Seminarium Optyczne

Quantum few-body systems are believed to form some kind of bridgebetween one- and two-body physics, well described with standard methodsof quantum mechanics, and many-body world where collective properties of quantum particles have to be taken into account in the framework ofstatistical mechanics. In nowadays experiments on ultra-cold atoms it ispossible to engineer, to control, and to perform measurements onfew-body systems in many different schemes. This amazing experimentalprogress has inspired theoreticians to reformulate old and to formulatenew questions on the properties of a mesoscopic number of quantumparticles. In my talk I will present some subjective view to the problemof a few interacting fermions.