Results 31 to 40 of about 327,247 (251)

Topological Nambu monopole in two Higgs doublet models

Physics Letters B, 2020
We show that a topological Nambu monopole exists as a regular solution for a large range of parameters in two Higgs doublet models, contrary to the standard model admitting only non-topological Nambu monopoles.
Minoru Eto, Yu Hamada, Masafumi Kurachi, Muneto Nitta   +3 more
doaj   +1 more source

Electroweak axion string and superconductivity

Journal of High Energy Physics, 2021
We study the axion strings with the electroweak gauge flux in the DFSZ axion model and show that these strings, called the electroweak axion strings, can exhibit superconductivity without fermionic zeromodes. We construct three types of electroweak axion
Yoshihiko Abe, Yu Hamada, Koichi Yoshioka   +2 more
doaj   +1 more source

Topological stars, black holes and generalized charged Weyl solutions

Journal of High Energy Physics, 2021
We construct smooth static bubble solutions, denoted as topological stars, in five-dimensional Einstein-Maxwell theories which are asymptotic to ℝ1,3×S1. The bubbles are supported by allowing electromagnetic fluxes to wrap smooth topological cycles.
Ibrahima Bah, Pierre Heidmann
doaj   +1 more source

Compactified webs and domain wall partition functions

European Physical Journal C: Particles and Fields, 2017
In this paper we use the topological vertex formalism to calculate a generalization of the “domain wall” partition function of M-strings. This generalization allows calculation of partition function of certain compactified webs using a simple gluing ...
Khurram Shabbir
doaj   +1 more source

Constructing Spin Density Vector Twists With Spin Density Singularity

IEEE Photonics Journal, 2022
In this article, we propose a non-orbital angular momentum (OAM) method for constructing the spiral twists of spin density (SD) vectors in three-dimensional (3D) optical fields. This is realized by generating strings of SD singularities in a longitudinal
Xiaoyan Pang, Han Zhang, Mingze Hu, Xinying Zhao   +3 more
doaj   +1 more source

Non-Abelian strings and domain walls in two Higgs doublet models

Journal of High Energy Physics, 2018
Contrary to the standard model that does not admit topologically nontrivial solitons, two Higgs doublet models admit topologically stable vortex strings and domain walls. We numerically confirm the existence of a topological Z-string confining fractional
Minoru Eto, Masafumi Kurachi, Muneto Nitta   +2 more
doaj   +1 more source

Stable Z-strings with topological polarization in two Higgs doublet model

Journal of High Energy Physics, 2022
We find that a Z-string is stable in a wide range of parameter space of the two Higgs doublet model due to a split into a pair of two topological Z-strings with fractional Z fluxes.
Minoru Eto, Yu Hamada, Muneto Nitta
doaj   +1 more source

Topological strings from WZW models [PDF]

, 1994
We show that the BRST structure of the topological string is encoded in the ``small'' N=4 superconformal algebra, enabling us to obtain, in a non-trivial way, the string theory from hamiltonian reduction of A(1|1).
W Lerche, Lerche, W., Sevrin, A., K Landsteiner, Landsteiner, K., A Sevrin   +5 more
core   +1 more source

Nano Borophene as a Programmable 2D Scaffold for Organized DNA Assembly and Long‐Range Energy Transfer

Advanced Functional Materials, EarlyView.
Borophene is introduced as a programmable 2D bio‐interface that organizes DNA through dual boron–sulfur and nucleobase interactions. This molecular architecture enables efficient long‐range nanosurface energy transfer, establishing new design principles for functional nano–bio interfaces and amplification‐free optical biosensing.
Teresa Aditya, Pranay Saha, John M. Sansalone, Shraddha Krishnakumar, Matthew Molinaro, André J. van der Vlies, Nada Maher, Adrienne Griffiths, Zakhro Zakirova, Ketan Dighe, Narayana R. Aluru, Dipanjan Pan   +11 more
wiley   +1 more source

Observation of vortex-string chiral modes in metamaterials

Nature Communications
As hypothetical topological defects in the geometry of spacetime, vortex strings could have played many roles in cosmology, and their distinct features can provide observable clues about the early universe’s evolution.
Jingwen Ma, Ding Jia, Li Zhang, Yi-jun Guan, Yong Ge, Hong-xiang Sun, Shou-qi Yuan, Hongsheng Chen, Yihao Yang, Xiang Zhang   +9 more
doaj   +1 more source