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Properties of universal bosonic tetramers | | A. Deltuva
; | | Date: |
1 Feb 2012 | | Abstract: | The system of four identical bosons is studied using momentum-space equations
for the four-particle transition operators. Positions, widths and existence
limits of universal unstable tetramers are determined with high accuracy. Their
effect on the atom-trimer and dimer-dimer scattering observables is discussed.
We show that a universal shallow tetramer intersects the atom-trimer threshold
twice leading to resonant effects in ultracold atom-trimer collisions. | | Source: | arXiv, 1202.0167 | | Services: | Forum | Review | PDF | Favorites | |
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