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7 papers · 1 filter
Supersymmetric String Waves
E. A. Bergshoeff, R. Kallosh, T. Ortin
We present plane-wave-type solutions of the lowest order superstring effective action which have unbroken space-time supersymmetries. They describe dilaton, axion and gauge fields…
Chiral Symmetry Breaking with the Curtis-Pennington Vertex
D. Atkinson, V. P. Gusynin, P. Maris
We study chiral symmetry breaking in quenched QED, using a vertex Ansatz recently proposed by Curtis and Pennington. Bifurcation analysis is employed to establish the existence…
Regularity Properties and Pathologies of Position-Space Renormalization-Group Transformations
A. C. D. van Enter, R. Fernandez, A. D. Sokal
We reconsider the conceptual foundations of the renormalization-group (RG) formalism, and prove some rigorous theorems on the regularity properties and possible pathologies of the…
The Supersymmetric Effective Action of the Heterotic String in Ten Dimensions
M. de Roo, H. Suelmann, A. Wiedemann
We construct the supersymmetric completion of quartic -actions in the ten-dimensional effective action of the heterotic string. Two invariants, of which the bosonic parts ar…
Realisations of Symmetry
E. Bergshoeff, H. J. Boonstra, M. de Roo
We perform a systematic investigation of free-scalar realisations of the Za\-mo\-lod\-chi\-kov algebra in which the operator product of two spin-three generators contains a n…
A Derivation of the BRST Operator for Non-Critical W-Strings
E. Bergshoeff, A. Sevrin, X. Shen
We derive the recently proposed BRST charge for non-critical W strings from a Lagragian approach. The basic observation is that, despite appearances, the combination of two classic…