Some Exact Results on Tachyon Condensation in String Field Theory

David Kutasov; Gregory Moore; Marcos Marino

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Some Exact Results on Tachyon Condensation in String Field Theory

David Kutasov, Marcos Marino, Gregory Moore

High Energy Physics - Theory · Submitted 19 Sep 2000

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We use them to show that the tension of the D25-brane is cancelled by tachyon condensation and compute exactly the profiles and tensions of lower dimensional D-branes.

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arXiv IDhep-th/0009148 (version 1)

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CitationDavid Kutasov, Gregory Moore, Marcos Marino. "Some Exact Results on Tachyon Condensation in String Field Theory." arXiv:hep-th/0009148 (2000). https://pith.science/paper/DEXVBAFI

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What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.06 · human participants 0.01 · controlled comparison 0.02 · randomized assignment 0.01 · states quantitative result 0.15 · compares with prior results 0.10 · mentions code or data availability 0.02.

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The study of open string tachyon condensation in string field theory can be drastically simplified by making an appropriate choice of coordinates on the space of string fields. We show that a very natural coordinate system is suggested by the connection between the worldsheet renormalization group and spacetime physics. In this system only one field, the tachyon, condenses while all other fields have vanishing expectation values. These coordinates are also well-suited to the study of D-branes as solitons. We use them to show that the tension of the D25-brane is cancelled by tachyon condensation and compute exactly the profiles and tensions of lower dimensional D-branes.

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#	sentence	role	the authors' own work	states the main conclusion	strength
s0	The study of open string tachyon condensation in string field theory can be drastically simplified by making an appropriate choice of coordinates on the space of string fields.	method 0.45	0.23	0.13	asserted 0.57
s1	We show that a very natural coordinate system is suggested by the connection between the worldsheet renormalization group and spacetime physics.	contribution 0.50	0.79	0.08	asserted 0.74
s2	In this system only one field, the tachyon, condenses while all other fields have vanishing expectation values.	result 0.93	0.78	0.25	asserted 1.00
s3	These coordinates are also well-suited to the study of D-branes as solitons.	interpretation 0.55	0.40	0.06	asserted 0.96
s4	We use them to show that the tension of the D25-brane is cancelled by tachyon condensation and compute exactly the profiles and tensions of lower dimensional D-branes.	result 0.92	0.96	0.74	asserted 1.00

What kind of paper the classifier reports this is: theoretical result 0.94 · evidence from proof or derivation 1.00.

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Original abstract

The study of open string tachyon condensation in string field theory can be drastically simplified by making an appropriate choice of coordinates on the space of string fields. We show that a very natural coordinate system is suggested by the connection between the worldsheet renormalization group and spacetime physics. In this system only one field, the tachyon, condenses while all other fields have vanishing expectation values. These coordinates are also well-suited to the study of D-branes as solitons. We use them to show that the tension of the D25-brane is cancelled by tachyon condensation and compute exactly the profiles and tensions of lower dimensional D-branes.

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References

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Cited by 9 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Analytic solution for tachyon condensation in open string field theory
hep-th 2005-11 accept novelty 8.0 of 10

An exact analytic solution of Witten's cubic open string field theory is constructed for the tachyon vacuum, and Sen's first conjecture (vacuum energy equals minus D-brane tension) is proved analytically.
Rolling Tachyon
hep-th 2002-03 accept novelty 8.0 of 10

Rolling-tachyon solutions on unstable D-branes are built by inverse Wick rotation of an exactly marginal boundary deformation, and their boundary states evolve smoothly to a finite energy density or hit a singularity ...
Spin Impurities, Wilson Lines and Semiclassics
hep-th 2022-01 conditional novelty 7.0 of 10

At large spin s, a magnetic impurity in the O(3) Wilson-Fisher model factorizes into the pinning-field defect times a free S² rotor, giving Δ_vector = 1 + O(1/s) and Δ_S ~ 1/s².
String Field Theory Solution for Any Open String Background
hep-th 2014-06 conditional novelty 7.0 of 10

An exact classical solution of open bosonic string field theory is constructed that reproduces any time-independent open string background, including tachyon lumps and multiple D-branes.
On the Boundary Entropy of One-dimensional Quantum Systems at Low Temperature
hep-th 2003-12 conditional novelty 7.0 of 10

The boundary entropy of a one-dimensional quantum system decreases monotonically under renormalization and with temperature, proving the Affleck-Ludwig g-conjecture.

Show 4 more citing papers

Revisiting color superconductors in bottom-up holography
hep-th 2025-01 conditional novelty 6.0 of 10

A holographic model with a Wess-Zumino scalar-4-form coupling produces a color superconducting phase at finite density, with large color-group Higgsing.
Renormalization Group Flows on Line Defects
hep-th 2021-08 conditional novelty 6.0 of 10

Renormalization group flows on line defects in d-dimensional conformal field theories are irreversible, with a canonical entropy function that decreases monotonically along the flow.
Tachyonic AdS/QCD, Determining the Strong Running Coupling and \beta-function in both UV and IR Regions of AdS Space
hep-ph 2022-06 unverdicted novelty 5.0 of 10

A tachyonic AdS/QCD construction deforms the bulk geometry with a tachyon-dependent dielectric function to produce a unified running coupling from perturbative UV to nonperturbative IR regimes.
Aspects of strings without spacetime supersymmetry
hep-th 2025-09 unverdicted novelty 2.0 of 10

A survey of tachyons and tadpoles in non-supersymmetric closed and orientifold strings, including ten-dimensional models and landscape attempts.

How the literature uses it

27 arXiv papers cite this in 37 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 24 sentences without a confident label

Uses its data or values 1 paper

We will present some details in Appendix [ref], and the result for bosonic string theory is [ref] : V(T) = (T+1) e^-T .

Dark Solitons, D-branes and Noncommutative Tachyon Field Theory · Noncommutative Tachyon Field Theory · 0.90

Compares with it 1 paper

It will also be interesting to compare our potential with those derived from BSFT [ref] or S-matrix method [ref] .

Tachyon potential in KBc subalgebra · Discussion · 0.94

Cites it as background 10 papers

This operator generates an exact RG flow studied by Witten in [ref] , see also [ref] , and is based on the operator (defined in the cylinder $C_T$ of width $T$ in the arctan frame) ϕ_u(s) = u(X^2(s)+2lnu +2 A) , where $A$ is a constant first introduced in [ref] .

The energy of the analytic lump solution in SFT · Review of the results from I · 0.82
This operator generates an exact RG flow studied by Witten in [ref] , see also [ref] , and is based on the operator (defined in the cylinder $C_T$ of width $T$ in the arctan frame) ϕ_u(s) = u(X^2(s)+2lnu +2 A) , where $A$ is a constant first introduced in [ref] .

Lump solutions in SFT. Complements · Review of the previous results · 0.92
This deformation was considered by many authors in the context of Boundary String Field Theory, [ref] , and, more recently, by Ellwood, [ref] in a pioneering proposal for Lump Solutions.

Relevant Deformations in Open String Field Theory: a Simple Solution for Lumps · An explicit example: lumps in non-compact dimensions · 0.91

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