Event Calendar

Tuesday, September 24, 2019

Tue, Sep 24, 2019

Photo of the outside of Valentine Dining Hall

Chinese Language Table

If you are interested in having more opportunities to speak Chinese, then join us twice a week for lunch! The Chinese Language Table is open to students, faculty and staff who would like to have conversations in Chinese. All levels are welcome.

Thomas Langin, Yale: “Ultracold Molecules: A New Tool for Studying Strongly Interacting Quantum Systems”

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.

Philosophy Club

Friendly conversations and presentations on ethics, metaphysics, epistemology and other philosophical subjects.