154 citations · 3k across the 148 of their papers we have counts for
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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…
Two phases of the noncommutative quantum mechanics
Stefano Bellucci, Armen Nersessian, Corneliu Sochichiu
We consider quantum mechanics on the noncommutative plane in the presence of magnetic field . We show, that the model has two essentially different phases separated by the point…
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…
Energy conditions and classical scalar fields
S. Bellucci, V. Faraoni
Attention has been recently called upon the fact that the weak and null energy conditions and the second law of thermodynamics are violated in wormhole solutions of Einstein's theo…
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…