The ROTA work has concentrated on identifying the topology and structure of different objects in the superfluid order parameter field, formed in the rotating state. ³He is the most versatile laboratory system where such principles as topological stability and confinement, nucleation of singularities, and interactions between objects of different topologies can be investigated.

In the µKI group we study systems thermally active still at microkelvin range of temperatures. This applies to most nuclear spin ensembles, fermion fluids (pure and dilute He-3), and some conduction electron systems, which fail to develop superconductivity or magnetic ordering at higher temperatures. Different subsystems of matter may have very different temperatures at the same time, though they may be spatially unseparable. Fascinating examples of this are the assemblies of nuclear spins and conduction electrons in metals.

The worldwide interest in nanoscience and nanotechnology is rapidly increasing. In low-temperature nanoelectronics, close to the LTL's traditional areas of excellence, one can find a niche among the world leaders. Normal and superconducting nanosamples will provide a new testing ground for fundamental physics as well as a possibility to develop new types of ultra sensitive detectors.

PICO group investigates thermal and transport properties of mesoscopic structures and devices. Particular research topics include nonequilibrium in electronic nanostructures, thermometry and electronic cooling, quantum coherence in small Josephson junction devices and quantized and coherent single charge pumping.

Theory group studies the fundamental properties of quantum condensed matter phenomena, in particular in superfluid ³He and in mesoscopic electron systems. Superfluid ³He is a model system for example for cosmology and turbulence. Understanding mesoscopic quantum electronics allows to characterize nanosystems with high precision.

KVANTTI group: we are investigating phenomena related to quantum coherence in systems such as superconducting circuits and Bose-Einstein condensates. We are also developing experimental methods for exploring the interaction between microwave fields and nano-structured materials.