Model study on the photoassociation of a pair of trapped atoms into an ultralong-range molecule

Using the method of quantum-defect theory, we calculate the ultralong-range molecular vibrational states near the dissociation threshold of a diatomic molecular potential which asymptotically varies as $-1/R^3$. The properties of these states are of considerable interest as they can be formed by photoassociation (PA) of two ground state atoms. The Franck-Condon overlap integrals between the harmonically trapped atom-pair states and the ultralong-range molecular vibrational states are estimated and compared with their values for a pair of untrapped free atoms in the low-energy scattering state. We find that the binding between a pair of ground-state atoms by a harmonic trap has significant effect on the Franck-Condon integrals and thus can be used to influence PA. Trap-induced binding between two ground-state atoms may facilitate coherent PA dynamics between the two atoms and the photoassociated diatomic molecule.Comment: 11 pages, 4 figures, to appear in Phys. Rev. A (September, 2003

Aging and autophagic function influences the progressive decline of adult Drosophila behaviors

10.1371/journal.pone.0132768PLoS ONE107e013276

In This Life: The Impact of Gender and Tradition on Sexuality and Relationships for Devadasi Sex Workers in Rural India

In the popular imagination and certain academic fields, sex workers\u27 experiences of sexuality and intimate relationships are often naturalized, to the point where they are assumed to be deviant or completely different than those of women in mainstream society. Researchers and sex worker organizations are challenging these reified constructions by examining more diverse and representative models of sexuality and relationships. However, the experiences of women selling sex in the third world are consistently portrayed as violent, non-pleasurable, and oppressive, characteristics often applied universally to third world women . Using data from ethnographic fieldwork with girls and women who belong to the Devadasi (servant/slave of the God) tradition of sex work in rural Karnataka, India, this paper examines the cultural dynamics of sexuality and relationships. Gender and dominant models of feminine identity emerge as powerful factors in shaping these facets of life, producing experiences among Devadasis that are similar to those of other Indian women. Yet, Devadasis also encounter additional constraints in their lives because of their participation in the morally and culturally contested Devadasi system. These data contribute to emerging research that destabilizes images of sex workers as different from other women, while also highlighting the impact of tradition on sexual mores and relationship structure in this unique cultural context