Results 81 to 90 of about 48,331 (201)

Twistor--like Formulation of the Supermembrane in D=11 $^*$

, 1993
We propose a new formulation of the D=11 supermembrane theory that involves commuting spinors (twistor--like variables) and exhibits a manifest $n$--extended world volume supersymmetry $(1\leq n\leq 8)$.
Achúcarro, Aoyama, Bandos, Bandos, Bengtsson, Bengtsson, Bergshoeff, Bergshoeff, Bergshoeff, Berkovits, Berkovits, Berkovits, Berkovits, Berkovits, Berkovits, Bonora, Bonora, Bonora, Chikalov, de Azcarraga, Delduc, Delduc, Delduc, Delduc, Delduc, Duff, Duff, Eisemberg, Eisenberg, Farlie, Ferber, Galperin, Galperin, Gauntlett, Howe, Ivanov, M. Tonin, P. Pasti, Paccanoni, Pashnev, Plyushchay, Shirafuji, Soroka, Sorokin, Sorokin, Sorokin, Tonin, Tonin, Townsend, Townsend, Volkov, Volkov, Witten   +52 more
core   +1 more source

T-duality and world-sheet supersymmetry [PDF]

, 1995
Four-dimensional string backgrounds with local realizations of N = 4 world-sheet supersymmetry have, in the presence of a rotational Killing symmetry, only one complex structure which is an SO(2) singlet, while the other two form an SO(2) doublet ...
Alvarez, Alvarez, Alvarez-Gaumé, Alvarez-Gaumé, Antoniadis, Atiyah, Atiyah, Bakas, Bakas, Bakas, Bakas, Bergshoeff, Bianchi, Boyer, Callan, Dabholkar, Duff, Eguchi, Font, Gates, Gegenberg, Gibbons, Gibbons, Giveon, Giveon, Giveon, Hassan, Hassan, Hawking, Henningson, Howe, Howe, Hull, Ioannis Bakas, Ivanov, Khuri, Khuri, Kiritsis, Kiritsis, Konstadinos Sfetsos, Kounnas, Kounnas, Meissner, Park, Rey, Rocek, Rocek, Schwarz, Sen, Sen, Sevrin, Strominger, Tod, van Nieuwenhuizen   +53 more
core   +2 more sources

Foundations of Ghost Stability

Fortschritte der Physik, Volume 73, Issue 4, April 2025.
Abstract The authors present a new method to analytically prove global stability in ghost‐ridden dynamical systems. The proposal encompasses all prior results and consequentially extends them. In particular, it is shown that stability can follow from a conserved quantity that is unbounded from below, contrary to expectation.
Verónica Errasti Díez, Jordi Gaset Rifà, Georgina Staudt   +2 more
wiley   +1 more source

Supercurrents in extended supersymmetry

Nuclear Physics B, 1984
Abstract Using the generalization of Noether's theorem to superspace, spinor superfields in extended superspace are derived that satisfy generalized conservation equations. These spinor superfields are superspace moments involving the superconformal parameters of vector indexed supercurrents as in the unextended case. The vector indexed supercurrents
openaire   +1 more source

All partial breakings in N=2 $$ \mathcal{N}=2 $$ supergravity with a single hypermultiplet

Journal of High Energy Physics, 2018
We consider partial supersymmetry breaking in N=2 $$ \mathcal{N}=2 $$ supergravity coupled to a single vector and a single hypermultiplet. This breaking pattern is in principle possible if the quaternion-Kähler space of the hypermultiplet admits (at ...
Ignatios Antoniadis, Jean-Pierre Derendinger, P. Marios Petropoulos, Konstantinos Siampos   +3 more
doaj   +1 more source

Split extended supersymmetry from intersecting branes

, 2005
We study string realizations of split extended supersymmetry, recently proposed in hep-ph/0507192. Supersymmetry is broken by small ($\epsilon $) deformations of intersection angles of $D$-branes giving tree-level masses of order $m_0^2\sim \epsilon M_s ...
Antoniadis, I., Benakli, K., Delgado, A., Quirós, M., Tuckmantel, M.   +4 more
core   +3 more sources

Extended supersymmetry of semichiral sigma model in 4D [PDF]

, 2014
Briefly: Using a novel $(1,1)$ superspace formulation of semichiral sigma models with $4D$ target space, we investigate if an extended supersymmetry in terms of semichirals is compatible with having a $4D$ target space with torsion.
Lindstrom, Ulf
core   +2 more sources

A Note on the Local Observability of Uniform Hypergraphs

Proceedings in Applied Mathematics and Mechanics, Volume 25, Issue 1, March 2025.
ABSTRACT Hypergraphs generalize graphs in such a way that edges may connect any number of nodes. If all edges are adjacent to the same number of nodes, the hypergraph is called uniform. Thus, a graph is a 2‐uniform hypergraph. Each uniform hypergraph can be identified with an autonomous dynamical state‐space system, whose vector field is composed of ...
Daniel Gerbet, Klaus Röbenack
wiley   +1 more source

Superspace evaluation of the two-loop effective potential for the O'Raifeartaigh model

, 2010
All-order spurion-corrected superpropagators and superfield Feynman rules are employed to systematically compute a two-loop corrected effective potential for the O'Raifeartaigh model, that realizes spontaneous supersymmetry breaking.
Abdalla, M. C. B., Helayël-Neto, J. A., Nedel, Daniel L., Senise Jr, Carlos R.   +3 more
core   +1 more source

Double Copy From Tensor Products of Metric BV■‐Algebras

Fortschritte der Physik, Volume 73, Issue 1-2, February 2025.
Abstract Field theories with kinematic Lie algebras, such as field theories featuring color–kinematics duality, possess an underlying algebraic structure known as BV■‐algebra. If, additionally, matter fields are present, this structure is supplemented by a module for the BV■‐algebra.
Leron Borsten, Branislav Jurčo, Hyungrok Kim, Tommaso Macrelli, Christian Saemann, Martin Wolf   +5 more
wiley   +1 more source