Symplectic structure in open string field theory II: Sliding lump

Abstract

We use a new formula for symplectic structure to compute the momentum of an analytic lump solution moving at constant velocity in Witten's open string field theory. The computation gives a new way to determine the D-brane tension in string field theory. Using homotopy algebra technology, we prove that this tension must agree with the value implied by the on-shell action.

23 pages, 2 figures; v2: minor corrections

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Cited by in corpus (1)

• Symplectic structure in open string field theory III: Electric field