Nambu-Goldstone dynamics and generalized coherent-state functional integrals

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F12%3A00194107" target="_blank" >RIV/68407700:21340/12:00194107 - isvavai.cz</a>
Result on the web
<a href="http://iopscience.iop.org/1751-8121/45/24/244009/pdf/1751-8121_45_24_244009.pdf" target="_blank" >http://iopscience.iop.org/1751-8121/45/24/244009/pdf/1751-8121_45_24_244009.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1751-8113/45/24/244009" target="_blank" >10.1088/1751-8113/45/24/244009</a>

Result language
angličtina
Original language name
Nambu-Goldstone dynamics and generalized coherent-state functional integrals
Original language description
This paper gives a new method of attack on the Nambu-Goldstone dynamics in spontaneously broken theories. Since the target space of the Nambu-Goldstone fields is a group coset space, their effective quantum dynamics can be naturally phrased in terms of generalized coherent-state functional integrals. As an explicit example of this line of reasoning, we construct a low-energy effective Lagrangian for the Heisenberg ferromagnet in a broken phase. The leading field configuration in the WKB approximation leads to the Landau-Lifshitz equation for quantum ferromagnet. The corresponding linearized equations allow one to identify the Nambu-Goldstone boson with a ferromagnetic magnon.
Czech name
—
Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BE - Theoretical physics
OECD FORD branch
—

Project
<a href="/en/project/GCP402%2F12%2FJ077" target="_blank" >GCP402/12/J077: Application of generalized statistics in critical phenomena and financial markets</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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