Results 101 to 110 of about 708 (174)

Chern-Simons supergravity on supergroup manifolds

Journal of High Energy Physics, 2020
We construct N=1 d=3 AdS supergravity within the group manifold approach and compare it with Achucarro-Townsend Chern-Simons formulation of the same theory.
L. Castellani, C.A. Cremonini, P.A. Grassi   +2 more
doaj   +1 more source

Crystal tensor properties of magnetic materials with and without spin–orbit coupling. Application of spin point groups as approximate symmetries

Acta Crystallographica Section A, Volume 81, Issue 4, Page 317-338, July 2025.
We have studied the constraints that the spin group symmetry imposes on the most important crystal tensors, on the basis of a generalization of the Neumann principle to spin point groups. Some examples of real materials are presented, and their tensor forms under the spin and magnetic point groups are compared.Spin space groups, formed by operations ...
Jesus Etxebarria, J. Manuel Perez-Mato, Emre S. Tasci, Luis Elcoro   +3 more
wiley   +1 more source

Magnetic structure determination of multiple phases in the multiferroic candidate GdCrO3

Acta Crystallographica Section B, Volume 81, Issue 3, Page 293-301, June 2025.
Using neutron powder diffraction, the successive magnetic structures in multiferroic candidate GdCrO3 have been determined, including a complex incommensurate phase below 2.3 K. The symmetry analysis uses a combination of little group formalism and superspace group approach highlighting the strength of each method and the results are reported using the
Pascal Manuel, Dmitry Khalyavin, Fabio Orlandi, Laurent Chapon, Wang Xueyun, Tae-Hwan Jang, Eun Sang Choi, Sang-Wook Cheong   +7 more
wiley   +1 more source

Strings on semisymmetric superspaces [PDF]

Journal of High Energy Physics, 2010
Several string backgrounds which arise in the AdS/CFT correspondence are described by integrable sigma-models. Their target space is always a Z(4) supercoset (a semi-symmetric superspace). Here we list all semi-symmetric cosets which have zero beta function and central charge c<=26 at one loop in perturbation theory.
openaire   +3 more sources

On Chiral Quantum Superspaces [PDF]

, 2011
36 pages.
FIORESI, RITA, D. Cervantes, M, Lledo
openaire   +3 more sources

Pauli-Lubanski, supertwistors, and the superspinning particle

Journal of High Energy Physics, 2017
We present a novel construction of the super-Pauli-Lubanski pseudo-vector for 4D supersymmetry and show how it arises naturally from the spin-shell constraints in the supertwistor formulation of superparticle dynamics.
Alex S. Arvanitakis, Luca Mezincescu, Paul K. Townsend   +2 more
doaj   +1 more source

The Sigma Model on Complex Projective Superspaces [PDF]

, 2009
The sigma model on projective superspaces CP^{S-1|S} gives rise to a continuous family of interacting 2D conformal field theories which are parametrized by the curvature radius R and the theta angle theta.
Quella, T, Saleur, H, Candu, C., Schomerus, V., Mitev, V., Candu, C, Mitev, V, Saleur, H., Quella, T., Schomerus, V, Thomas Quella, Vladimir Mitev, Hubert Saleur, Constantin Candu, Volker Schomerus   +14 more
core   +1 more source

Massive superspace — A superspace with massive scalars and gauginos

Physics Letters B, 1983
Abstract We introduce a superspace whose global metric is modified in the fermionic sector and hence does not have the canonical supersymmetry. This introduces masses for physical scalar particles and gauginos with their superpartners remaining massless.
K.T. Mahanthappa, G.M. Staebler
openaire   +1 more source

Unfolded hypermultiplet in harmonic superspace

European Physical Journal C: Particles and Fields
We construct an unfolded system that describes an on-shell free massless hypermultiplet and show that the standard harmonic superspace formulation of this model naturally arises from the “vielbeinization” of unfolded 1-forms associated to R-symmetry ...
Nikita Misuna
doaj   +1 more source

Pure spinor superspace action for D = 6, N = 1 super-Yang-Mills theory

Journal of High Energy Physics, 2018
A Batalin-Vilkovisky action for D = 6, N = 1 super-Yang-Mills theory, including coupling to hypermultiplets, is given. The formalism involves pure spinor superfields.
Martin Cederwall
doaj   +1 more source