Three-body repulsive forces among identical bosons in one dimension
نویسندگان
چکیده
منابع مشابه
Universal relations for identical bosons from three-body physics.
Systems consisting of identical bosons with a large scattering length satisfy universal relations determined by 2-body physics that are similar to those for fermions with two spin states. They require the momentum distribution to have a large-momentum 1/k(4) tail and the radio-frequency transition rate to have a high-frequency 1/ω(3/2) tail, both of which are proportional to the 2-body contact....
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David A. T. Somers1,2 and Jeremy N. Munday2,3 1Department of Physics, University of Maryland, College Park, Maryland 20740, USA 2Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20740, USA 3Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20740, USA (Received 3 October 2016; revised manuscr...
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In a recent experiment with ultracold trapped Rb85 atoms, Makotyn et al. studied a quantum-degenerate Bose gas in the unitary limit where its scattering length is infinitely large. We show that the observed momentum distributions are compatible with a universal relation that expresses the high-momentum tail in terms of the two-body contact C2 and the three-body contact C3. We determine the cont...
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Recent experimental and theoretical work has indicated conditions in which a trapped, low density Bose gas ought to behave like the 1D delta-function Bose gas solved by Lieb and Liniger. Up until now, the theoretical arguments have been based on variational/perturbative ideas or numerical investigations. There are four parameters: density, transverse and longitudinal dimensions, and scattering ...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2019
ISSN: 2469-9926,2469-9934
DOI: 10.1103/physreva.100.013614