Three bodies bind even when two do not: Efimov states and Fano resonances in atoms and nuclei

Details Three bodies bind even when two do not: Efimov states and Fano resonances in atoms and nuclei Three bodies bind even when two do not: Efimov states and Fano resonances in atoms and nuclei

2007-06-08

arxiv.org/abs/0706.1230v1

Physics

Quantum Physics

2 figures

Scientific paper

Efimov's prediction more than three decades ago that three-body bound states can exist when the pairwise attractions do not bind or only support weakly bound states of a pair, has remained unconfirmed till just the past year. This lecture provides the pedagogical background for recent work on Efimov states in neutron-rich nuclei done with I. Mazumdar (TIFR) and V. S. Bhasin (Delhi University), and published in Phys. Rev. Lett. 97, 062503 (2006). Both these nuclear systems and recent observations of cold cesium atoms provide the first clear evidence for the existence of Efimov states.

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