Many-body quantum physics of Josephson coupled Bose condensates

Atomic Bose-Einstein condensates are intrinsic many-body quantum systems. Many-body quantum effects become significant in low-dimensional systems and systems with strict symmetry constraints, degeneracy, or strong interaction. Examples include low-dimensional quantum gases, spinor condensates, rapidly rotating systems, strongly interacting systems, and condensed atoms loaded into deep multi-well potentials. For condensates confined in multi-well potentials, such as double-well potentials and optical lattices, the Josephson tunneling links together the condensates in different wells and then establish the relative phase which could be measured in experiments.