scholarly journals Three-body losses of a polarized Fermi gas near a p -wave Feshbach resonance in effective field theory

2020 ◽  
Vol 101 (6) ◽  
Author(s):  
M. Schmidt ◽  
H.-W. Hammer ◽  
L. Platter
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Feshbach Resonance ◽  
Fermi Gas ◽  
Effective Field ◽  
P Wave ◽  
Three Body

scholarly journals Three-body systems in physics of cold atoms and halo nuclei

2016 ◽  
Vol 25 (05) ◽  
pp. 1641003 ◽  
Author(s):  
Chen Ji
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Cold Atoms ◽  
Effective Field ◽  
Low Energy ◽  
Halo Nuclei ◽  
Particle Interactions ◽  
Body Contact ◽  
Low Energies ◽  
Three Body

Few-body systems, such as cold atoms and halo nuclei, share universal features at low energies, which are insensitive to the underlying inter-particle interactions at short ranges. These low-energy properties can be investigated in the framework of effective field theory with two-body and three-body contact interactions. I review the effective-field-theory studies of universal physics in three-body systems, focusing on the application in cold atoms and halo nuclei.

scholarly journals Three-body systems in pionless effective field theory

2016 ◽  
Vol 25 (05) ◽  
pp. 1641002 ◽  
Author(s):  
Jared Vanasse
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Bound State ◽  
Effective Field ◽  
Nuclear Systems ◽  
History Of ◽  
Three Body ◽  
Theory Formula

Investigations of three-body nuclear systems using pionless effective field theory ([Formula: see text]) are reviewed. The history of [Formula: see text] in [Formula: see text] and [Formula: see text] scattering is briefly discussed and emphasis put on the use of strict perturbative techniques. In addition renormalization issues appearing in [Formula: see text] scattering are also presented. Bound state calculations are addressed and new perturbative techniques for describing them are highlighted. Three-body breakup observables in [Formula: see text] scattering are also considered and the utility of [Formula: see text] for addressing them.

scholarly journals Effective Field Theory for Shallow P-Wave States

2021 ◽  
Vol 62 (3) ◽  
Author(s):  
E. Epelbaum ◽  
J. Gegelia ◽  
H. P. Huesmann ◽  
Ulf-G. Meißner ◽  
Xiu-Lei Ren
Keyword(s):  
Field Theory ◽  
Renormalization Group ◽  
Finite Number ◽  
Effective Field Theory ◽  
Wave Scattering ◽  
Group Analysis ◽  
Effective Field ◽  
P Wave ◽  
Renormalization Group Analysis ◽  
Wave States

AbstractWe discuss the formulation of a non-relativistic effective field theory for two-body P-wave scattering in the presence of shallow states and critically address various approaches to renormalization proposed in the literature. It is demonstrated that the consistent renormalization involving only a finite number of parameters in the well-established formalism with auxiliary dimer fields corresponds to the inclusion of an infinite number of counterterms in the formulation with contact interactions only. We also discuss the implications from the Wilsonian renormalization group analysis of P-wave scattering.

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