Quantum Many Body Systems
Illustration of the cyclotron orbits of atoms exposed to extremely strong effective magnetic fields in specially engineered light crystals.[less]
Illustration of the cyclotron orbits of atoms exposed to extremely strong effective magnetic fields in specially engineered light crystals.
Understanding interacting quantum many body systems and engineering and exploiting such quantum systems for quantum information purposes pose some of the most outstanding challenges in quantum physics. Our research focuses on realizing and controlling such systems using ultracold atomic quantum gases. Starting with ultracold gases of degenerate quantum matter of bosons or fermions held in optical and magnetic traps, we e.g. impose crystals of light on top of the atoms in order to trap them in controlled periodic potentials.
Such arrays can serve as versatile model systems for condensed matter physics, or as useful quantum information processors and effective setups for precision atomic and molecular physics measurements. Furthermore, our group investigates the possibility of forming interfaces between these many-body systems and light in order to generate novel nonclassical light sources and quantum memories for light.