scholarly journals Three-Body Bound States in Dipole-Dipole Interacting Rydberg Atoms

2013 ◽  
Vol 111 (23) ◽  
Author(s):  
Martin Kiffner ◽  
Wenhui Li ◽  
Dieter Jaksch
2018 ◽  
Vol 181 ◽  
pp. 01013 ◽  
Author(s):  
Reinhard Alkofer ◽  
Christian S. Fischer ◽  
Hèlios Sanchis-Alepuz

The covariant Faddeev approach which describes baryons as relativistic three-quark bound states and is based on the Dyson-Schwinger and Bethe-Salpeter equations of QCD is briefly reviewed. All elements, including especially the baryons’ three-body-wave-functions, the quark propagators and the dressed quark-photon vertex, are calculated from a well-established approximation for the quark-gluon interaction. Selected previous results of this approach for the spectrum and elastic electromagnetic form factors of ground-state baryons and resonances are reported. The main focus of this talk is a presentation and discussion of results from a recent investigation of the electromagnetic transition form factors between ground-state octet and decuplet baryons as well as the octet-only Σ0 to Λ transition.


Author(s):  
Lucas Happ ◽  
Matthias Zimmermann ◽  
Maxim A Efremov

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.


2017 ◽  
Vol 770 ◽  
pp. 131-137 ◽  
Author(s):  
E. Ydrefors ◽  
J.H. Alvarenga Nogueira ◽  
V. Gigante ◽  
T. Frederico ◽  
V.A. Karmanov

2019 ◽  
Vol 1291 ◽  
pp. 012013
Author(s):  
E Ydrefors ◽  
J H Alvarenga Nogueira ◽  
V A Karmanov ◽  
T Frederico

1995 ◽  
Vol 74 (9) ◽  
pp. 1653-1656 ◽  
Author(s):  
P. Coleman ◽  
E. Miranda ◽  
A. Tsvelik
Keyword(s):  

1981 ◽  
Vol 59 (2) ◽  
pp. 225-230 ◽  
Author(s):  
G. Pantis ◽  
H. Fiedeldey ◽  
D. W. L. Sprung

The charge form factor of the model triton clearly exhibits the collapse which occurs in the triton for purely nonlocal two-body interactions with continuum bound states and approaches an asymptotic shape with increasing binding energy. However, partly nonlocal interactions with continuum bound states, which previously have been shown not to produce such a collapse, also show no evidence whatsoever of the presence of the two-particle continuum bound state in the triton charge form factor. In the physically interesting case of partly nonlocal interactions the occurrence of a continuum bound state in the two-body interactions therefore can be completely harmless in the three-body system.


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