Results 111 to 120 of about 11,293 (226)

A connection between twistors and superstring sigma models on coset superspaces [PDF]

, 2009
We consider superstring sigma models that are based on coset superspaces G/H in which H arises as the fixed point set of an order-4 automorphism of G. We show by means of twistor theory that the corresponding first-order system, consisting of the Maurer ...
Martin Wolf
semanticscholar   +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

Embedding formalism for AdS superspaces in five dimensions

Journal of High Energy Physics
The standard geometric description of d-dimensional anti-de Sitter (AdS) space is a quadric in ℝ d−1,2 defined by (X 0)2 − (X 1)2 − ⋯ − (X d−1)2 + (X d )2 = ℓ 2 = const.
Nowar E. Koning, Sergei M. Kuzenko
doaj   +1 more source

A codex on linearized Nordström supergravity in eleven and ten dimensional superspaces

Journal of High Energy Physics, 2019
As the full off-shell theories of supergravity in the important dimensions of eleven and ten dimensions are currently unknown, we introduce a superfield formalism as a foundation and experimental laboratory to explore the possibility that the scalar ...
S. James Gates, Yangrui Hu, Hanzhi Jiang, S.-N. Hazel Mak   +3 more
doaj   +1 more source

Superfield realization of hidden R-symmetry in extended supersymmetric gauge theories and its applications

Journal of High Energy Physics, 2020
We present the explicit superfield realizations of the hidden SU(4) and O(5) R-symmetries in 4D, N $$ \mathcal{N} $$ = 4 and 5D, N $$ \mathcal{N} $$ = 2 supersymmetric Yang-Mills theories in the harmonic superspace approach.
I.L. Buchbinder, E.A. Ivanov, V.A. Ivanovskiy   +2 more
doaj   +1 more source

Loop quantization of spherically symmetric midi‐superspaces : the interior problem [PDF]

, 2007
We continue the study of spherically symmetric vacuum space‐times in loop quantum gravity by treating the interior of a black hole. We start from a midi‐superspace approach, but a simple gauge fixing leads to a Kantowski–Sachs form for the variables.
Miguel Campiglia, R. Gambini, J. Pullin
semanticscholar   +1 more source

Modulation of the modulated magnetic structure of an Ho i‐MAX phase described by a magnetic (3+2)‐dimensional superspace group

Acta Crystallographica Section B, Volume 81, Issue 1, Page 37-46, February 2025.
A rare complex incommensurate magnetic structure, an amplitude‐modulated structure which itself is modulated, was determined in the Ho‐based i‐MAX phase (Mo2/3Ho1/3)2GaC. It represents a particularly distinctive case of a 2‐k magnetic structure with no symmetry relation between the propagation vectors.The magnetic structures of the Ho‐based i‐MAX phase
Claire V. Colin, Quanzheng Tao, Christine Opagiste, Rafik Balou, Johanna Rosen, Thierry Ouisse, Václav Petříček   +6 more
wiley   +1 more source

Near horizon superspace [PDF]

Journal of High Energy Physics, 1998
The adS_{p+2} x S^{d-p-2} geometry of the near horizon branes is promoted to a supergeometry: the solution of the supergravity constraints for the vielbein, connection and form superfields are found. This supergeometry can be used for the construction of new superconformal theories.
Kallosh, Renata, Rahmfeld, Joachim, Rajaraman, Arvind   +2 more
openaire   +2 more sources

Six-dimensional N $$ \mathcal{N} $$ = (2, 0) conformal superspace

Journal of High Energy Physics
We develop a new off-shell formulation for six-dimensional conformal supergravity obtained by gauging the 6D N $$ \mathcal{N} $$ = (2, 0) superconformal algebra in superspace.
Christian Kennedy, Gabriele Tartaglino-Mazzucchelli   +1 more
doaj   +1 more source

High‐performance thermoelectric calcium cobaltite nanoribbon ceramic via electrospinning and dual spark plasma texturing

Journal of the American Ceramic Society, Volume 108, Issue 2, February 2025.
Abstract High‐performance polycrystalline calcium cobaltite ceramic was synthesized via electrospinning of nanoribbons, followed by dual‐process compaction using spark plasma sintering and edge‐free spark plasma texturing. The combination of nanoribbon electrospinning and this multistage sintering technique was employed for the first time and resulted ...
Katharina Kruppa, Itzhak I. Maor, Anat Karlin, Frank Steinbach, Gennady E. Shter, Dorothea Stobitzer, Hilke Petersen, Bernd Breidenstein, Meirav Mann‐Lahav, Gideon S. Grader, Armin Feldhoff   +10 more
wiley   +1 more source