The observation of interference fringes between two overlapping macroscopic quantum objects is one of the most striking demonstrations of the wave properties of matter. Several new and intriguing features emerge when interference experiments are performed with condensates that have internal degrees of freedom (spin). In this talk, I will present evidence for the spontaneous development of a macroscopic spin vector from the spatial superposition of two Bose Einstein condensates, independently prepared in different spin states.

Contact: Luis Orozco