Thermodynamic properties and thermometry of 1D Bose gases

The one-dimensional (1D) Bose gas model of particles interacting via a repulsive delta-function potential is a remarkable system for extending our understanding of the physics of interacting quantum many-body systems. On the one hand, the model is exactly solvable in quantum many-body theory. On the other hand, it is now experimentally realizable with ultra-cold alkali atoms in highly anisotropic trapping potentials. Thus there are outstanding opportunities for accurate tests of theory that were previously unavailable, in turn leading to the development of fundamental knowledge and novel practical applications such as precision measurements.