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Continuum dynamics of the 1-D Heisenberg antiferromagnet: Identification with the O(3) nonlinear sigma model
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An action-angle representation of spin variables was used to relate the large-S Heisenberg antiferromagnet to the O(3) nonlinear sigma model quantum field theory, with precise equivalence for integral S as discussed by the authors.About:
This article is published in Physics Letters A.The article was published on 1983-02-14. It has received 1855 citations till now. The article focuses on the topics: Sigma model & AKLT model.read more
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Renormalization group analysis of the quantum non-linear sigma model with a damping term
TL;DR: In this paper, the behavior of the zero-temperature quantum non-linear sigma model in d dimensions was investigated in the presence of a damping term of the form f(ω) ∼ |ω|α with 1 ⩽ α 1.
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Enhancing easy-plane anisotropy in bespoke Ni(II) quantum magnets
Jamie L. Manson,Zachary Manson,Ashley Sargent,Danielle Y. Villa,Nicole L. Etten,William J. A. Blackmore,Samuel P. M. Curley,Robert C. Williams,Jamie Brambleby,Paul Goddard,Andrew Ozarowski,Murray Wilson,B. M. Huddart,Tom Lancaster,Roger Johnson,Stephen J. Blundell,Jesper Bendix,Kraig A. Wheeler,Saul H. Lapidus,Fan Xiao,Fan Xiao,Serena M. Birnbaum,John Singleton +22 more
TL;DR: In this paper, the crystal structures and magnetic properties of several S = 1 Ni(II) coordination compounds, molecules and polymers, that include the bridging ligands HF2−, AF62− (A ǫ, Zr) and pyrazine or non-bridgingligands F−, SiF62−, glycine, H2O, 1-vinylimidazole, 4-methylpyrazole and 3-hydroxypyridine, were examined.
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Husimi function and phase-space analysis of bilayer quantum Hall systems at ν = 2/ λ
M. Calixto,C. Peón-Nieto +1 more
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Topological Spin Torque Emerging in Classical Spin Systems with Different Timescales.
TL;DR: The emergent effective theory for the slow-spin degrees of freedom is developed and it is demonstrated that this generally includes a topological spin torque which gives rise to anomalous real-time dynamics.
References
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Zur Theorie der Metalle
TL;DR: In this article, a Methode angegeben, um die Eigenfunktionen nullter and Eigenwerte erster Naherung (im Sinne des Approximationsverfahrens von London and Heitler) fur ein „eindimensionales Metall“ zu berechnen, bestehend aus einer linearen Kette von sehr vielen Atomen, von denen jedes auser abgeschlossenen Schalen eins-Elektron with Spin besitz
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On the theory of metals. 1. Eigenvalues and eigenfunctions for the linear atomic chain
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Integrable Hamiltonian systems and interactions through quadratic constraints
TL;DR: In this article, the relativistic field theories in one time and one space dimension with interactions that are entirely due to quadratic constraints are shown to be closely related to integrable Hamiltonian systems.
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Interaction of Goldstone Particles in Two-Dimensions. Applications to Ferromagnets and Massive Yang-Mills Fields
TL;DR: In this paper, it is shown that due to interaction the regime of the asymmptotic freedom arises and the continuation to higher dimensions and the applications of the result are briefly discussed.
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What is the spin of a spin wave
L. D. Faddeev,L.A. Takhtajan +1 more
TL;DR: In this paper, it was shown that the spin of a spin wave in the Heisenberg antiferromagnetic chain of spins 1 2 is equal to 1 2 rather than 1 as is generally considered to be true.