A Note on kappa-diagonal surface states
2004
We classify all twist-even squeezed states in string field theory which are diagonal in the κ-basis and simultaneously surface states. For this purpose, we derive a consistency condition for the maps defining κ-diagonal surface states. It restricts these maps to a two-parameter family of Jacobi sine functions. Not all of them are admissible maps for surface states; standard requirements single out two one-parameter families containing the generalized butterfly states and the wedge states.
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