Strings in an arbitrary constant magnetic field with arbitrary constant metric and stringy form factors

Understand

We quantize the open string in an arbitrary constant magnetic field with a non factorized metric on a torus.

• We then discuss carefully the vertexes which describe the emission of dipole open strings and closed strings in the non compact limit.
• Finally we compute various stringy form factors which in the compact case induces a Kaehler and complex structure dependence and suppression of some amplitudes with KK states.