Results 1 to 10 of about 3,294 (151)
We classify N =1 d = 4 kinematical and aristotelian Lie superalgebras with spa- tial isotropy, but not necessarily parity nor time-reversal invariance. Employing a quater- nionic formalism which makes rotational covariance manifest and simplifies many of
José Figueroa-O’Farrill, Ross Grassie
doaj +6 more sources
On Five-dimensional Superspaces [PDF]
Recent one-loop calculations of certain supergravity-mediated quantum corrections in supersymmetric brane-world models employ either the component formulation (hep-th/0305184) or the superfield formalism with only half of the bulk supersymmetry ...
+28 more
core +8 more sources
Abstract We consider, at the linearized level, the superspace formulation of lower-dimensional F-theory. In particular, we describe the embedding of 3D Type II super-gravity of the superstring, or 4D, N = 1 supergravity of M-theory, into the corresponding F-theory in full detail, giving the linearized action and gauge ...
William D. Linch, Warren Siegel
openaire +3 more sources
Supertwistor realisations of AdS superspaces
We propose supertwistor realisations of (p, q) anti-de Sitter (AdS) superspaces in three dimensions and $${\mathcal {N}}$$ N -extended AdS superspaces in four dimensions.
Sergei M. Kuzenko +1 more
doaj +1 more source
Spinorial Snyder and Yang models from superalgebras and noncommutative quantum superspaces
The relativistic Lorentz-covariant quantum space-times obtained by Snyder can be described by the coset generators of (anti) de-Sitter algebras. Similarly, the Lorentz-covariant quantum phase spaces introduced by Yang, which contain additionally quantum ...
Jerzy Lukierski, Mariusz Woronowicz
doaj +1 more source
17 pages, revised ...
Baulieu, Laurent, Martin, Alexis
openaire +4 more sources
Embedding formalism for (p, q) AdS superspaces in three dimensions
We develop an embedding formalism for (p, q) anti-de Sitter (AdS) superspaces in three dimensions by using a modified version of their supertwistor description given in the literature. A coset construction for these superspaces is worked out.
Sergei M. Kuzenko, Kai Turner
doaj +1 more source
Schrödinger Symmetry in Gravitational Mini-Superspaces
We prove that the simplest gravitational symmetry-reduced models describing cosmology and black hole mechanics are invariant under the Schrödinger group.
Jibril Ben Achour +3 more
doaj +1 more source
Navigating collinear superspace [PDF]
AbstractWe introduce a new set of effective field theory rules for constructing Lagrangians with$$ \mathcal{N} $$N= 1 supersymmetry in collinear superspace. In the standard superspace treatment, superfields are functions of the coordinates$$ \left({x}^{\mu },{\theta}^{\alpha },{\theta}^{\dagger \overset{\cdot }{\alpha }}\right) $$xμθαθ†α⋅, and ...
Cohen, Timothy +3 more
openaire +4 more sources
Superspaces for heterotic pure spinor string compactifications
We study supersymmetry conditions for the heterotic pure superstring preserving $$N=1$$ N = 1 supersymmetry in four dimensions directly from the curved superspace defined by the Berkovits–Howe constraints.
Osvaldo Chandia, Brenno Carlini Vallilo
doaj +1 more source

