Results 41 to 50 of about 847,218 (303)
βγ-systems interacting with sigma-models
Journal of High Energy Physics, 2020 We find a geometric description of interacting βγ-systems as a null Kac-Moody quotient of a nonlinear sigma-model for systems with varying amounts of supersymmetry.
Ulf Lindström, Martin Roček
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Entanglement Entropy and Quantum Phase Transition in the O(N) σ-model
Journal of High Energy Physics, 2021 We investigate how entanglement entropy behaves in a non-conformal scalar field system with a quantum phase transition, by the replica method. We study the σ-model in 3+1 dimensions which is O(N) symmetric as the mass squared parameter μ 2 is positive ...
Jiunn-Wei Chen +2 more
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Solitary Waves in Massive Nonlinear S^N-Sigma Models [PDF]
, 2010 Preprint[EN] The solitary waves of massive (1+1)-dimensional nonlinear S^N-sigma models are unveiled. It is shown that the solitary waves in these systems are in one-to-one correspondence with the separatrix trajectories in the repulsive N-dimensional ...
Miguel Ángel González León +5 more
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Linear sigma models with torsion [PDF]
Journal of High Energy Physics, 2011 Gauged linear sigma models with (0,2) supersymmetry allow a larger choice of couplings than models with (2,2) supersymmetry. We use this freedom to find a fully linear construction of torsional heterotic compactifications, including models with branes.
Quigley, Callum, Sethi, Savdeep
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, 2010 A new technique for the latent state estimation of a wide class of nonlinear time series models is proposed. In particular, we develop a partially linearized sigma point filter in which random samples of possible state values are generated at the ...
Mamon, R +5 more
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Advances in Theoretical and Mathematical Physics51 pages, 7 ...
Bykov, Dmitri, Krivorol, Viacheslav
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Integrable deformations of sigma models [PDF]
Journal of Physics A: Mathematical and Theoretical, 2022 Abstract In this pedagogical review we introduce systematic approaches to deforming integrable two-dimensional sigma models. We use the integrable principal chiral model and the conformal Wess–Zumino–Witten model as our starting points and explore their Yang–Baxter and current–current deformations.
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Anderson localization in sigma models
EPJ Web of Conferences, 2018 In QCD above the chiral restoration temperature there exists an Anderson transition in the fermion spectrum from localized to delocalized modes. We investigate whether the same holds for nonlinear sigma models which share properties like dynamical mass ...
Bruckmann Falk, Wellnhofer Jacob
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International Collaborative Research Guidelines [PDF]
, 2003 Sigma provides leadership in research to enhance the health of the world\u27s people. Its vision is to create a global community of nurses who lead in using scholarship to accomplish this mission. Advancing the scientific base of nursing practice through
Sigma Theta Tau International
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FEBS Letters, EarlyView.This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva +5 more
wiley +1 more source