3 papers
hep-th2025
Gravitational analog of the Non-Abelian T-duality
Oleg Lunin, Parita Shah
Non-abelian T duality (NATD) is a symmetry of the worldsheet action that allows one to generate new solutions of string theory by performing algebraic transformations of known geom…
hep-th2025
Double Field Theory and corrections: explicit examples
Oleg Lunin, Parita Shah
We construct several solutions of effective actions for string theories beyond the supergravity approximation utilizing the framework of the Double Field Theory (DFT). The DFT effe…
hep-th2024
Geometries with twisted spheres and non-abelian T-dualities
Oleg Lunin, Parita Shah
Spectral flow in two-dimensional field theories is known to correspond to geometrical twisting between two circles in the gravity dual. We generalize this operation to the geometri…