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Moduli spaces of instantons in flag manifold sigma models. Vortices in quiver gauge theories

Journal of High Energy Physics
In this paper, we discuss lumps (sigma model instantons) in flag manifold sigma models. In particular, we focus on the moduli space of BPS lumps in general Kähler flag manifold sigma models. Such a Kähler flag manifold, which takes the form U n 1 + ⋯ + n
Toshiaki Fujimori, Muneto Nitta, Keisuke Ohashi   +2 more
doaj   +1 more source

Integrable sigma model with generalized F structure, Yang-Baxter sigma model with generalized complex structure and multi-Yang-Baxter sigma model

Nuclear Physics B
We construct an integrable sigma model with a generalized F structure, which involves a generalized Nijenhuis structure J satisfying J3=−J. Utilizing the expression of the generalized complex structure on the metric Lie group manifold G in terms of ...
A. Rezaei-Aghdam, A. Taghavi
doaj   +1 more source

Exact four-dimensional string solutions and Toda-like sigma models from ‘null-gauged’ WZNW theories [PDF]

, 1994
C. Klimčı́k, A.A. Tseytlin
openalex   +1 more source

Circles and triangles, the NLSM and Tr(Φ3)

Journal of High Energy Physics
A surprising connection has recently been made between the amplitudes for Tr(Φ3) theory and the non-linear sigma model (NLSM). A simple shift of kinematic variables naturally suggested by the associahedron/stringy representation of Tr(Φ3) theory yields ...
Nima Arkani-Hamed, Carolina Figueiredo
doaj   +1 more source

The second-order renormalization group flow for nonlinear sigma models in two dimensions [PDF]

, 2009
Todd A Oliynyk
openalex   +1 more source

Functional renormalization group study of the two-flavor linear sigma model in the presence of the axial anomaly [PDF]

, 2013
Mara Grahl, Dirk H. Rischke
openalex   +1 more source

Finite Energy Instantons in the O(3) Non-Linear Sigma Model [PDF]

, 1994
P. Tinyakov, Emil Mottola, Salman Habib
openalex   +1 more source

The Role of Sigma-1 Receptors in an Alzheimer's Disease Mouse Model

, 2017
Maryline J. Lalande
openalex   +2 more sources

Mass Splittings in a Linear Sigma Model [PDF]

, 2019
Erik Gustafson, Diego de Floor, Yannick Meurice   +2 more
openalex   +1 more source

Auxiliary field sigma models and Yang-Baxter deformations

Journal of High Energy Physics
We combine the Yang-Baxter (YB) and bi-Yang-Baxter (bi-YB) deformations with higher-spin auxiliary field deformations to construct multi-parameter families of integrable deformations of the principal chiral model on a Lie group G with semi-simple Lie ...
Daniele Bielli, Christian Ferko, Liam Smith, Gabriele Tartaglino-Mazzucchelli   +3 more
doaj   +1 more source