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D-brane effective field theory from string field theory
High Energy Physics - Theory · Submitted 28 Jan 2000
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We find that the level truncation method converges for these terms within 2-4% when all massive fields up to level 20 are integrated out, although the convergence is slower than exponential.
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Open string field theory is considered as a tool for deriving the effective action for the massless or tachyonic fields living on D-branes. Some simple calculations are performed in open bosonic string field theory which validate this approach. The level truncation method is used to calculate successive approximations to the quartic terms \phi^4, (A^\mu A_\mu)^2 and [A_\mu, A_\nu]^2 for the zero momentum tachyon and gauge field on one or many bosonic D-branes. We find that the level truncation method converges for these terms within 2-4% when all massive fields up to level 20 are integrated out, although the convergence is slower than exponential. We discuss the possibility of extending this work to determine the structure of the nonabelian Born-Infeld theory describing the gauge field on a system of many parallel bosonic or supersymmetric D-branes. We also describe a brane configuration in which tachyon condensation arises in both the gauge theory and string field theory pictures. This provides a natural connection between recent work of Sen and Zwiebach on tachyon condensation in string field theory and unstable vacua in super Yang-Mills and Born-Infeld field theory.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Open string field theory is considered as a tool for deriving the effective action for the massless or tachyonic fields living on D-branes. | background 0.56 | 0.30 | 0.10 | asserted 0.96 |
| s1 | Some simple calculations are performed in open bosonic string field theory which validate this approach. | contribution 0.74 | 0.90 | 0.09 | asserted 1.00 |
| s2 | The level truncation method is used to calculate successive approximations to the quartic terms \phi^4, (A^\mu A_\mu)^2 and [A_\mu, A_\nu]^2 for the zero momentum tachyon and gauge field on one or many bosonic D-branes. | method 0.93 | 0.90 | 0.07 | asserted 0.99 |
| s3 | We find that the level truncation method converges for these terms within 2-4% when all massive fields up to level 20 are integrated out, although the convergence is slower than exponential. | result 1.00 | 0.96 | 0.35 | asserted 1.00 |
| s4 | We discuss the possibility of extending this work to determine the structure of the nonabelian Born-Infeld theory describing the gauge field on a system of many parallel bosonic or supersymmetric D-branes. | future work 1.00 | 0.32 | 0.09 | hedged possibility 0.97 |
| s5 | We also describe a brane configuration in which tachyon condensation arises in both the gauge theory and string field theory pictures. | contribution 0.75 | 0.85 | 0.09 | asserted 1.00 |
| s6 | This provides a natural connection between recent work of Sen and Zwiebach on tachyon condensation in string field theory and unstable vacua in super Yang-Mills and Born-Infeld field theory. | interpretation 1.00 | 0.40 | 0.17 | asserted 0.96 |
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Original abstract
Open string field theory is considered as a tool for deriving the effective action for the massless or tachyonic fields living on D-branes. Some simple calculations are performed in open bosonic string field theory which validate this approach. The level truncation method is used to calculate successive approximations to the quartic terms \phi^4, (A^\mu A_\mu)^2 and [A_\mu, A_\nu]^2 for the zero momentum tachyon and gauge field on one or many bosonic D-branes. We find that the level truncation method converges for these terms within 2-4% when all massive fields up to level 20 are integrated out, although the convergence is slower than exponential. We discuss the possibility of extending this work to determine the structure of the nonabelian Born-Infeld theory describing the gauge field on a system of many parallel bosonic or supersymmetric D-branes. We also describe a brane configuration in which tachyon condensation arises in both the gauge theory and string field theory pictures. This provides a natural connection between recent work of Sen and Zwiebach on tachyon condensation in string field theory and unstable vacua in super Yang-Mills and Born-Infeld field theory.
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Effective actions were computed from bosonic open string field theory in [ref] using level truncation.
Super Yang-Mills Action from Hybrid Superstring Field Theory · Introduction · 0.94
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