Bound states of rotons to impurities in He II |
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| Authors: | P. H. Roberts R. W. Walden R. J. Donnelly |
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| Affiliation: | (1) Department of Physics and Institute of Theoretical Science, University of Oregon, Eugene, Oregon;(2) Present address: School of Mathematics, University of Newcastle upon Tyne, Newcastle upon Tyne, England |
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| Abstract: | Rotons and impurities such as ions or solvated 3He particles can interact via dipolar forces from the flow fields of the roton and the motion of the impurity through the background fluid. Stable bound states of rotons to impurities can occur with near-zero total momentum. We give explicit results of bound-state calculations for solvated 3He, the positive helium ion, and the negative electron bubble.Research supported by the National Science Foundation and the Air Force Office of Scientific Research under grants NSF DMR 76-21814 and AFOSR 76-2880. |
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