Effective Lagrangians for quantum many-body systems
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F14%3A00433584" target="_blank" >RIV/61389005:_____/14:00433584 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/JHEP08(2014)088" target="_blank" >http://dx.doi.org/10.1007/JHEP08(2014)088</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP08(2014)088" target="_blank" >10.1007/JHEP08(2014)088</a>
Alternative languages
Result language
angličtina
Original language name
Effective Lagrangians for quantum many-body systems
Original language description
The low-energy and low-momentum dynamics of systems with a spontaneously broken continuous symmetry is dominated by the ensuing Nambu-Goldstone bosons. It can be conveniently encoded in a model-independent effective field theory whose structure is fixedby symmetry up to a set of effective coupling constants. We construct the most general effective Lagrangian for the Nambu-Goldstone bosons of spontaneously broken global internal symmetry up to fourth order in derivatives. Rotational invariance and spatial dimensionality of one, two or three are assumed in order to obtain compact explicit expressions, but our method is completely general and can be applied without modifications to condensed matter systems with a discrete space group as well as to higher-dimensional theories. The general low-energy effective Lagrangian for relativistic systems follows as a special case. We also discuss the effects of explicit symmetry breaking and classify the corresponding terms in the Lagrangian. Diver
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BE - Theoretical physics
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
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Volume of the periodical
2014
Issue of the periodical within the volume
8
Country of publishing house
US - UNITED STATES
Number of pages
45
Pages from-to
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UT code for WoS article
000340491300002
EID of the result in the Scopus database
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