PreprintCC BY 4.0arXiv
Hamiltonian of open string field theory for time-dependent solutions
Abstract
Using the recently introduced expression for conserved charges of L∞ theories, we give an explicit form for the Hamiltonian of Witten's bosonic open string field theory. We evaluate it on the Erler-Maccaferri analytic solution, describing any Dp-brane configuration associated to a BCFT. We use the expression to compute the energy of the rolling tachyon solution and find exact agreement with the boundary state result by Sen.
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BibTeX
@misc{bernardes2026hamiltonian,
title = {{Hamiltonian of open string field theory for time-dependent solutions}},
author = {Vinícius Bernardes and Riccardo Poletti},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.03941},
eprint = {2611.03941},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.03941},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Hamiltonian of open string field theory for time-dependent solutions
AU - Vinícius Bernardes
AU - Riccardo Poletti
PY - 2026
DA - 2026/11/02
PB - arXiv
DO - 10.48550/arxiv.2611.03941
UR - https://arxiv.org/abs/2611.03941
AB - Using the recently introduced expression for conserved charges of L_∞ theories, we give an explicit form for the Hamiltonian of Witten's bosonic open string field theory. We evaluate it on the Erler-Maccaferri analytic solution, describing any Dp-brane configuration associated to a BCFT. We use the expression to compute the energy of the rolling tachyon solution and find exact agreement with the boundary state result by Sen.
ER -