HOWE, PS STELLE, KS TOWNSEND, PK

We show that the supergeometry of the new minimal formulation of N = 1 supergravity is a limiting case of the non-minimal supergeometry for which the volume of superspace vanishes. The action for supergravity in this case is then no longer the superdeterminant of the vielbein but is analogous to a special form of the Fayet-Iliopoulos term allowed o...

GALPERIN, AS HOWE, PS STELLE, KS

We present a unified group-theoretical framework for superparticle theories. This explains the origin of the “twistor-like” variables that have been used in trading the superparticle's κ-symmetry for world-line supersymmetry. We show that these twistor-like variables naturally parametrise the coset space , where is the Lorentz group SO↑ (1, d−1) an...

POPE, CN ROMANS, LJ SEZGIN, E STELLE, KS

We study the spectrum of W3 string. In particular, we show that for appropriately chosen space-time signature, one of the scalar fields is singled out by the spin-3 constraint and is “frozen”: no creation operators from it can appear in physical states and the corresponding momentum must assume a specific fixed value. The remaining theory is unitar...

POPE, CN SEZGIN, E STELLE, KS WANG, XJ

We construct the low-lying discrete states of the two-scalar W3 string. This includes states that correspond to the analogues of the ground ring generators of the ordinary two-dimensional string. These give rise to infinite towers of discrete states at higher levels.

LU, H POPE, CN NILSSON, BEW STELLE, KS WEST, PC

We investigate the spectrum of physical states in the W3 string theory, up to level 2 for a multiscalar string, and up to level 4 for the two-scalar string. The (open) W3 string has a photon as its only massless state. By using screening charges to study the null physical states in the two-scalar W3 string, we are able to learn about the gauge symm...

BERGSHOEFF, E PERCACCI, R SEZGIN, E STELLE, KS TOWNSEND, PK

We consider, for p odd, a p-brane coupled to a (p + 1)th-rank background antisymmetric tensor field and to background Yang-Mills (YM) fields via a Wess-Zumino term. We obtain the generators of antisymmetric tensor and Yang-Mills gauge transformations acting on p-brane wave functionals (functions on . The Yang-Mills generators do not form a closed a...

MOHAYEE, R POPE, CN STELLE, KS XU, KW

We reformulate the BRST quantisation of chiral Virasoro and W3 worldsheet gravities. Our approach follows directly the classic BRST formulation of Yang-Mills theory in employing a derivative gauge condition instead of the conventional conformal gauge condition, supplemented by an introduction of momenta in order to put the ghost action back into fi...

ANDERSON, A NILSSON, BEW POPE, CN STELLE, KS

LU, H POPE, CN STELLE, KS XU, KW

We investigate new realisations of the W3 algebra with arbitrary central charge, making use of the fact that this algebra can be linearised by the inclusion of a spin-1 current. We use the new realisations with c = 102 and c = 100 to build non-critical and critical W3 BRST operators. Both of these can be converted by local canonical transformations...

LU, H POPE, CN SEZGIN, E STELLE, KS

The elementary and solitonic supersymmetric p-brane solutions to supergravity theories form families related by dimensional reduction, each headed by a maximal (‘stainless’) member that cannot be isotropically dimensionally oxidized into higher dimensions. We find several new families, headed by stainless solutions in various dimensions D ⩽ 9. In s...