Results 41 to 50 of about 570,731 (252)
Topological strings on genus one fibered Calabi-Yau 3-folds and string dualities [PDF]
Journal of High Energy Physics, 2019 We calculate the generating functions of BPS indices using their modular properties in Type II and M-theory compactifications on compact genus one fibered CY 3-folds with singular fibers and additional rational sections or just N -sections, in order to ...
Cesar Fierro Cota +2 more
semanticscholar +1 more source
Refined topological amplitudes from the Ω-background in string theory
Journal of High Energy Physics, 2022 It was recently shown that the N $$ \mathcal{N} $$ = 2 string topological amplitudes in the heterotic weak coupling limit generate a six-dimensional Melvin space, providing a description of the Ω-background in string theory, where string propagation can ...
Carlo Angelantonj +3 more
doaj +1 more source
Empathy, caring and compassion: Toward a Freudian critique of nursing work
Nursing Philosophy, Volume 24, Issue 1, January 2023., 2023 Abstract The aim of this paper is to summarize key psychoanalytic concepts first developed by Sigmund Freud and apply them to a critical exploration of three terms that are central to nursing's self‐image—empathy, caring, and compassion. Looking to Menzies‐Lyth's work, I suggest that the nurse's strong identification as a carer can be understood as a ...
Michael Traynor
wiley +1 more source
Transplanckian censorship and global cosmic strings
Journal of High Energy Physics, 2017 Large field excursions are required in a number of axion models of inflation. These models also possess global cosmic strings, around which the axion follows a path mirroring the inflationary trajectory. Cosmic strings are thus an interesting theoretical
Matthew J. Dolan +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 +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
Matrix Models from Operators and Topological Strings, 2 [PDF]
Annales de l'Institute Henri Poincare. Physique theorique, 2015 The quantization of mirror curves to toric Calabi–Yau threefolds leads to trace class operators, and it has been conjectured that the spectral properties of these operators provide a non-perturbative realization of topological string theory on these ...
R. Kashaev, M. Mariño, Szabolcs Zakany
semanticscholar +2 more sources
Layer construction of 3D topological states and string braiding statistics [PDF]
Phys. Rev. X 4, 041043 (2014), 2014 While the topological order in two dimensions has been studied extensively since the discover of the integer and fractional quantum Hall systems, topological states in 3 spatial dimensions are much less understood. In this paper, we propose a general formalism for constructing a large class of three-dimensional topological states by stacking layers of ...
arxiv +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 +3 more
doaj +1 more source
JHEP 0609:082,2006, 2005 We classify potential cosmic strings according to the topological charge measurable outside the string core. We conjecture that in string theory it is this charge that governs the stability of long strings. This would imply that the SO(32) heterotic string can have endpoints, but not the E_8 x E_8 heterotic string.
arxiv +1 more source