Diversity of knot solitons in liquid crystals manifested by linking of preimages in torons and hopfions

PJ Ackerman, II Smalyukh - Physical Review X, 2017 - APS
Topological solitons are knots in continuous physical fields classified by nonzero Hopf index
values. Despite arising in theories that span many branches of physics, from elementary …

Static three-dimensional topological solitons in fluid chiral ferromagnets and colloids

PJ Ackerman, II Smalyukh - Nature materials, 2017 - nature.com
Abstract Three-dimensional (3D) topological solitons are continuous but topologically
nontrivial field configurations localized in 3D space and embedded in a uniform far-field …

Anomalies of 4d SpinG theories

TD Brennan, K Intriligator - Journal of High Energy Physics, 2024 - Springer
A bstract We consider't Hooft anomalies of four-dimensional gauge theories whose fermion
matter content admits Spin G (4) generalized spin structure, with G either gauged or a global …

Candidate Phases for SU(2) Adjoint QCD with Two Flavors from Supersymmetric Yang-Mills Theory

C Cordova, TT Dumitrescu - arxiv preprint arxiv:1806.09592, 2018 - arxiv.org
We study four-dimensional adjoint QCD with gauge group SU (2) and two Weyl fermion
flavors, which has an $ SU (2) _R $ chiral symmetry. The infrared behavior of this theory is …

Baryon spectrum of SU (4) composite Higgs theory with two distinct fermion representations

V Ayyar, T DeGrand, DC Hackett, WI Jay, ET Neil… - Physical Review D, 2018 - APS
We use lattice simulations to compute the baryon spectrum of SU (4) lattice gauge theory
coupled to dynamical fermions in the fundamental and two-index antisymmetric (sextet) …

Gluequark dark matter

R Contino, A Mitridate, A Podo, M Redi - Journal of High Energy Physics, 2019 - Springer
A bstract We introduce the gluequark Dark Matter candidate, an accidentally stable bound
state made of adjoint fermions and gluons from a new confining gauge force. Such scenario …

Topological transformations of Hopf solitons in chiral ferromagnets and liquid crystals

JSB Tai, PJ Ackerman… - Proceedings of the …, 2018 - National Acad Sciences
Liquid crystals are widely known for their facile responses to external fields, which forms a
basis of the modern information display technology. However, switching of molecular …

Ferromagnetic switching of knotted vector fields in liquid crystal colloids

Q Zhang, PJ Ackerman, Q Liu, II Smalyukh - Physical Review Letters, 2015 - APS
We experimentally realize polydomain and monodomain chiral ferromagnetic liquid crystal
colloids that exhibit solitonic and knotted vector field configurations. Formed by dispersions …

Emergent Non-Invertible Symmetries Bridging UV and IR Phases--The Adjoint QCD Example

M Del Zotto, SN Meynet, D Migliorati… - arxiv preprint arxiv …, 2024 - arxiv.org
In this letter, we demonstrate how an emergent non-invertible symmetry along a
renormalization group (RG) flow reveals connections between microscopic and macroscopic …

Are there tetraquarks at large in QCD(F)?

TD Cohen, RF Lebed - Physical Review D, 2014 - APS
Weinberg recently pointed out a flaw in the standard argument that large N c QCD with color-
fundamental quarks [QCD (F)] cannot yield narrow tetraquark states. In particular, he …