Universality of excited three-body bound states in one dimension
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Abstract We study a heavy-heavy-light three-body system confined to one space dimension in the regime where an excited state in the heavy-light subsystems becomes weakly bound. The associated two-body system is characterized by (i) the structure of the weakly-bound excited heavy-light state and (ii) the presence of deeply-bound heavy-light states. The consequences of these aspects for the behavior of the three-body system are analyzed. We find a strong indication for universal behavior of both three-body binding energies and wave functions for different weakly-bound excited states in the heavy-light subsystems.
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1985 ◽
Vol 113
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pp. 335-338
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2011 ◽
Vol 20
(04)
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pp. 947-952
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Keyword(s):
1992 ◽
Vol 25
(13)
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pp. 3059-3066
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