Symplectic structure in open string field theory II: Sliding lump
High Energy Physics - Theory
2026-02-10 v2
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.
Keywords
Cite
@article{arxiv.2511.15781,
title = {Symplectic structure in open string field theory II: Sliding lump},
author = {Vinícius Bernardes and Theodore Erler and Atakan Hilmi Fırat},
journal= {arXiv preprint arXiv:2511.15781},
year = {2026}
}
Comments
23 pages, 2 figures; v2: minor corrections