We analyze the necessary and sufficient conditions for the preservation of supersymmetry
for bosonic geometries of the form R 1, 9− d× M d, in the common Neveu-Schwarz–Neveu-…

… The situation is now similar to the zero-torsion case: the existence of solutions appears to …
analysis of superstring backgrounds with spacetime supersymmetry and non-zero torsion. The …

… To understand the geometrical meaning of torsion, we compare it with the intrinsic curvature
of GR. When a tangent vector is parallel transported along a closed path, it changes its …

… manifolds of heterotic superstrings with torsion. These … for compactification of superstrings
with torsion derived by Strominger … their relevancy to the geometry to superstrings with torsion. …

… Using a “Superstrings with Torsion” type description, we study a class of IIB orientifolds in …
Here, we extend the previous analysis, first by providing an intrinsic description that does not …

… torsion constraint in (3.14) is Zaq t ; = -2iSqpya~t ensuring the flat supersurface limit. The other
torsion … /-/'n//m on the supersurface coincides with an intrinsic metric EaEa up to the scale …

… in terms of intrinsic torsion classes for string backgrounds with local SU(3) × SU(3) structure.
… to various intrinsic torsion classes. In particular, if we assume the intrinsic torsion and H are …

… Quantizing this twistor-like constraint leads to the pure spinor formalism for the superstring
where the fermionic superspace variables θ α and their conjugate momenta come from the …

… the notions of intrinsic torsion and characteristic … torsion connections enable us to discuss
spinorial field equations, such as those governing the common sector of type II superstring …

… the superstring restrictions and leads to the discovery of type II superstring theory (SST II). …
The superstring theories can be described by a light-cone-gauge action principle based on …