97 citations · 1.6k across the 79 of their papers we have counts for
6 papers · 2 filters
Quantum mechanics of superparticle with 1/4 supersymmetry breaking
S. Bellucci, A. Galajinsky, E. Ivanov +1
We study quantum mechanics of a massive superparticle in d=4 which preserves 1/4 of the target space supersymmetry with eight supercharges, and so corresponds to the partial breaki…
Can one restore Lorentz invariance in quantum N=2 string?
Stefano Bellucci, Anton Galajinsky
We consider quantum N=2 string embedded into the N=4 topological framework from the perspective of the old covariant quantisation. Making use of the causality and cyclic symmetry o…
The geometry of N=4 twisted string
Stefano Bellucci, Alexei Deriglazov, Anton Galajinsky
We compare N=2 string and N=4 topological string within the framework of the sigma model approach. Being classically equivalent on a flat background, the theories are shown to lead…
Complete Lagrangian formulation for N=4 topological string
Stefano Bellucci, Anton Galajinsky
We give a Lagrangian and display all local symmetries for N=4 topological string by Berkovits, Vafa and Siegel, the latter previously known in the superconformal gauge. Leading to…
Restoring Lorentz Invariance in Classical N=2 String
Stefano Bellucci, Anton Galajinsky
We study classical N=2 string within the framework of the N=4 topological formalism by Berkovits and Vafa. Special emphasis is put on the demonstration of a classical equivalence o…
A Heterotic N=2 String with Space-Time Supersymmetry
Stefano Bellucci, Anton Galajinsky, Olaf Lechtenfeld
We reconsider the issue of embedding space-time fermions into the four-dimensional N=2 world-sheet supersymmetric string. A new heterotic theory is constructed, taking the right-mo…