Results 61 to 70 of about 3,554 (187)

Supersymmetric Poisson and Poisson-supersymmetric sigma models

open access: yesJournal of High Energy Physics
We revisit and construct new examples of supersymmetric 2D topological sigma models whose target space is a Poisson supermanifold. Inspired by the AKSZ construction of topological field theories, we follow a graded-geometric approach and identify two ...
Thomas Basile   +2 more
doaj   +1 more source

Harmonic Superfields in N=4 Supersymmetric Quantum Mechanics

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
This is a brief survey of applications of the harmonic superspace methods to the models of N=4 supersymmetric quantum mechanics (SQM). The main focus is on a recent progress in constructing SQM models with couplings to the background non-Abelian gauge ...
Evgeny A. Ivanov
doaj   +1 more source

FTheoryTools: Advancing Computational Capabilities for F‐Theory Research

open access: yesFortschritte der Physik, Volume 74, Issue 1, January 2026.
Abstract A primary goal of string phenomenology is to identify realistic four‐dimensional physics within the landscape of string theory solutions. In F‐theory, such solutions are encoded in the geometry of singular elliptic fibrations, whose study often requires particularly challenging and cumbersome computations.
Martin Bies   +2 more
wiley   +1 more source

Lattice Supersymmetry [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2003
A method is proposed for latticizing a class of supersymmetric gauge theories, including N=4 super Yang-Mills. The technique is inspired by recent work on ``deconstruction''. Part of the target theory's supersymmetry is realized exactly on the lattice, reducing or eliminating the need for fine tuning.
openaire   +3 more sources

From linear to non-linear SUSY and back again

open access: yesJournal of High Energy Physics, 2017
We show that couplings of the goldstino field, appearing when global supersymmetry is broken, can always be described in superspace by means of a nilpotent chiral superfield X, satisfying X 2 = 0.
N. Cribiori, G. Dall’Agata, F. Farakos
doaj   +1 more source

Free energy expansions of a conditional GinUE and large deviations of the smallest eigenvalue of the LUE

open access: yesCommunications on Pure and Applied Mathematics, Volume 78, Issue 12, Page 2247-2304, December 2025.
Abstract We consider a planar Coulomb gas ensemble of size N$N$ with the inverse temperature β=2$\beta =2$ and external potential Q(z)=|z|2−2clog|z−a|$Q(z)=|z|^2-2c \log |z-a|$, where c>0$c>0$ and a∈C$a \in \mathbb {C}$. Equivalently, this model can be realised as N$N$ eigenvalues of the complex Ginibre matrix of size (c+1)N×(c+1)N$(c+1) N \times (c+1)
Sung‐Soo Byun   +2 more
wiley   +1 more source

STRING THEORY: UNRAVELING THE FABRIC OF THE UNIVERSE

open access: yesWorldwide Journal of Physics, 2022
This study presents a comprehensive exploration of string theory as a unifying framework for understanding the fundamental structure of the universe. By modeling particles as one-dimensional strings and examining their vibrational modes, this research ...
Ahsan Zeb, Arif Mumtaz
doaj  

de Sitter Excited State in Heterotic E8×E8${\rm E}_8 \times {\rm E}_8$ Theory

open access: yesFortschritte der Physik, Volume 73, Issue 12, December 2025.
Abstract A novel duality sequence is devised to study late‐time cosmology in the heterotic E8×E8${\rm E}_8 \times {\rm E}_8$ setup of Horava and Witten with dynamical walls that are moving towards each other. Remarkably, the dimensionally reduced 4‐dimensional theory does not violate NEC and no bouncing or ekpyrotic phase is observed.
Suddhasattwa Brahma   +5 more
wiley   +1 more source

Supersymmetry Then and Now [PDF]

open access: yesFortschritte der Physik, 2006
AbstractA brief description of some salient aspects of four‐dimensional supersymmetry: early history, supermanifolds, the MSSM, cold dark matter, the cosmological constant and the string landscape.
openaire   +2 more sources

Quantum control and quantum speed limits in supersymmetric potentials

open access: yesNew Journal of Physics, 2022
Supersymmetry allows one to build a hierarchy of Hamiltonians that share the same spectral properties and which are pairwise connected through common super-potentials.
C Campbell, J Li, Th Busch, T Fogarty
doaj   +1 more source

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