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

2013 ◽  
Vol 111 (23) ◽  
Author(s):  
Martin Kiffner ◽  
Wenhui Li ◽  
Dieter Jaksch
Keyword(s):  
Bound States ◽  
Rydberg Atoms ◽  
Three Body

scholarly journals Electromagnetic transition form factors of baryons in a relativistic Faddeev approach

2018 ◽  
Vol 181 ◽  
pp. 01013 ◽  
Author(s):  
Reinhard Alkofer ◽  
Christian S. Fischer ◽  
Hèlios Sanchis-Alepuz
Keyword(s):  
Ground State ◽  
Bound States ◽  
Body Wave ◽  
Form Factors ◽  
Wave Functions ◽  
Electromagnetic Form Factors ◽  
Transition Form ◽  
Electromagnetic Transition ◽  
Three Body ◽  
Gluon Interaction

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.

scholarly journals Universality of excited three-body bound states in one dimension

2021 ◽  
Author(s):  
Lucas Happ ◽  
Matthias Zimmermann ◽  
Maxim A Efremov
Keyword(s):  
Excited States ◽  
Bound States ◽  
Space Dimension ◽  
Binding Energies ◽  
Wave Functions ◽  
One Dimension ◽  
Strong Indication ◽  
Body System ◽  
Weakly Bound ◽  
Three Body

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.

scholarly journals Three-body bound states with zero-range interaction in the Bethe–Salpeter approach

2017 ◽  
Vol 770 ◽  
pp. 131-137 ◽  
Author(s):  
E. Ydrefors ◽  
J.H. Alvarenga Nogueira ◽  
V. Gigante ◽  
T. Frederico ◽  
V.A. Karmanov
Keyword(s):  
Bound States ◽  
Range Interaction ◽  
Zero Range ◽  
Three Body

scholarly journals Bethe-Salpeter approach to three-body bound states with zero-range interaction

2019 ◽  
Vol 1291 ◽  
pp. 012013
Author(s):  
E Ydrefors ◽  
J H Alvarenga Nogueira ◽  
V A Karmanov ◽  
T Frederico
Keyword(s):  
Bound States ◽  
Range Interaction ◽  
Zero Range ◽  
Three Body

scholarly journals Three-Body Bound States and the Development of Odd-Frequency Pairing

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

The charge form factor of the model triton for two-particle interactions with continuum bound states

1981 ◽  
Vol 59 (2) ◽  
pp. 225-230 ◽  
Author(s):  
G. Pantis ◽  
H. Fiedeldey ◽  
D. W. L. Sprung
Keyword(s):  
Form Factor ◽  
Bound States ◽  
Bound State ◽  
Interesting Case ◽  
Charge Form Factor ◽  
Particle Interactions ◽  
Charge Form ◽  
Nonlocal Interactions ◽  
Asymptotic Shape ◽  
Three Body

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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