Thomas Langin from Yale University will be speaking on Bose-Einstein Condensates (BECs).
BECs, in which the material is cold and dense enough that the wavefunctions of the particles overlap (e.g., when the DeBroglie wavelength (λ∝1/√T) equals the interparticle spacing (a∝n^(- 1/3))), are typically created by cooling N≥1000 atoms to T≤100 nK. These systems have many interesting properties, such as superfluidity, easily tunable interactions and phase coherence. However, in most atoms, interactions are limited to short-range van der Waals interactions.
At Yale, we are attempting to create BECs of SrF, a polar molecule which has strong, tunable, long-range dipole-dipole interactions. Molecules also have many easily accessible long-lived rotational states, which make them attractive for quantum information studies. In this talk, I will discuss the techniques we have implemented thus far to cool thousands of SrF molecules to T∼10μK. I will conclude by discussing our progress toward reaching lower temperatures and achieving a BEC of SrF.
Whether you have meditated for a long time or have never meditated, come join us for this time of practice together. Come to relax, quiet your mind, learn how to experience less suffering and stress, explore Buddhist philosophy and psychology, or just talk about what it means to live from compassion and awareness or because you are curious. The group will be led by Buddhist Advisor Mark Hart.