Laser radiation pressure slowing of a molecular beam

There is substantial interest in producing samples of ultracold molecules for possible applications in quantum computation, quantum simulation of condensed matter systems, precision measurements, controlled chemistry, and high precision spectroscopy. A crucial step to obtaining large samples of ultracold, trapped molecules is developing a means to bridge the gap between typical molecular source velocities (~150-600 m/s) and velocities for which trap loading or confinement is possible (~5-20 m/s). Here we show deceleration of a beam of neutral strontium monofluoride (SrF) molecules using radiative force. Under certain conditions, the deceleration results in a substantial flux of molecules with velocities <50 m/s. The observed slowing, from ~140 m/s, corresponds to scattering ~10000 photons. We also observe longitudinal velocity compression under different conditions. Combined with molecular laser cooling techniques, this lays the groundwork to create slow and cold molecular beams suitable for trap loading.Comment: 7 pages, 7 figures. Supplementary material updated

In With The Old, Out With The New: Green Marketing And The Used Merchandise Sector

This study explores the emergence of the used merchandise sector and its implications for green marketing. We demonstrate that although few consumers purchase green products based on environmental concerns, consumers who shop for used merchandise do so with these issues in mind. Examining consumer blogs, we uncover the relationship between the environmental movement and the growth of the used merchandise sector. Green marketing has failed to account for this shift, because it focuses on the consumption of green products rather than consumption reduction facilitated by the used merchandise sector and re-use market. To make a difference, green marketing must change emphasis from consumption to consumption reduction