||String field theory solution corresponding to constant background magnetic field
Ishibashi, Nobuyuki ,
Kishimoto, IsaoTakahashi, Tomohiko
Progress of theoretical and experimental physics
, p.013B06 , 2017-01 , Oxford University Press
Following the method recently proposed by Erler and Maccaferri, we construct solutions to the equation of motion of Witten's cubic string field theory, which describe a constant magnetic field background. We study the boundary condition changing operators relevant to such a background, and calculate their operator product expansions. We obtain solutions whose classical action coincide with the Born–Infeld action.