Universality in few-body systems with large scattering length
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Cites background from "Universality in few-body systems wi..."
...The domain of universality, where scattering and bound state properties are solely characterized by the scattering length and mass, are discussed at length in recent reviews (Braaten and Hammer, 2006; Köhler et al., 2006)....
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...For bosonic atoms with large scattering length a ≫ ā and low temperatures, L3 scales generally as a4 (Braaten and Hammer, 2006; Esry et al., 1999; Fedichev et al., 1996b; Nielsen and Macek, 1999), but with additional quantum features (resonance and interference effects) as discussed in Sec....
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Cites background from "Universality in few-body systems wi..."
...(Braaten and Hammer, 2006)....
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...(18), the effective coupling can be expressed in terms of the scattering length g2eff 4π = 4M2 µ −aγ a+ 2/γ , (26) which reduces to −4M2/(µa) in the limit of λ2 = 0, reflecting the universality of an S-wave system with a large scattering length (Braaten and Hammer, 2006)....
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References
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"Universality in few-body systems wi..." refers background in this paper
...In order to introduce some basic concepts associated with universality in systems with a large scattering length, we begin with a brief review of scattering theory [7,8]....
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...To obtain the 3-body elastic scattering rate, the effects of 2-body elastic collisions, with the third particle infinitely far away, must be subtracted [7]....
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3,334 citations
"Universality in few-body systems wi..." refers background in this paper
...QCD has a single coupling constant s( ) with an asymptotically free ultraviolet fixed point: s( ) → 0 as → ∞ [50,51]....
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...It is a familiar feature of quantum chromodynamics, the quantum field theory that describes the strong interactions [50,51]....
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3,298 citations