Ljubica Davidović

T-duality in a weakly curved background

We consider the closed string propagating in a weakly curved background which consists of a constant metric and a Kalb–Ramond field with an infinitesimally small coordinate-dependent part. We propose a procedure for constructing the

Non-commutativity parameters depend not only on the effective coordinate but on its T-dual as well

T

Open string T-duality in a weakly curved background

T-dual theory, performing

Relations between scaling-transformed Husimi functions, Wigner functions and symplectic tomograms describing corresponding physical states

T

Scale transformations in phase space and stretched states of a harmonic oscillator

T-duality transformations along the coordinates on which the Kalb–Ramond field depends. The theory obtained is defined in the non-geometric double space, described by the Lagrange multiplier