General aspects of effective field theories and few-body applications

Effective field theory provides a powerful framework to exploit a separation of scales in physical systems. In these lectures, we discuss some general aspects of effective field theories and their application to few-body physics. In particular, we consider an effective field theory for non-relativis...

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Bibliographic Details
Published inarXiv.org
Main Authors H -W Hammer, König, Sebastian
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 10.10.2016
Subjects
Field theory
Magnetic fields
Nuclear physics
Physics - Nuclear Theory
Physics - Quantum Gases
Relativistic particles
Relativistic theory
System effectiveness
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Summary:Effective field theory provides a powerful framework to exploit a separation of scales in physical systems. In these lectures, we discuss some general aspects of effective field theories and their application to few-body physics. In particular, we consider an effective field theory for non-relativistic particles with resonant short-range interactions where certain parts of the interaction need to be treated nonperturbatively. As an application, we discuss the so-called pionless effective field theory for low-energy nuclear physics. The extension to include long-range interactions mediated by photon and pion-exchange is also addressed.
ISSN:2331-8422
DOI:10.48550/arxiv.1610.02961