A new term in the p-adic world-sheet action is proposed, which couples a constant B-field to the boundary of the world-sheet at disk level. The induced deformation of tachyon scattering amplitudes by star-products is derived. This is in agreement with the deformation of effective action postulated in recent investigations of non-commutative solitons in p-adic string theory. © 2005 Elsevier B.V. All rights reserved.
Grange, P. (2005). Deformation of p-adic string amplitudes in a magnetic field. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 616(1–2), 135–140. https://doi.org/10.1016/j.physletb.2005.04.053