Off-shell D-brane action at order<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:msup><mml:mrow><mml:mi>α</mml:mi></mml:mrow><mml:mrow><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>in flat spacetime

Garousi, Mohammad R.

doi:10.1103/physrevd.93.066014

Cited by 8 publications

(11 citation statements)

References 34 publications

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“…On the other hand, consistency of the effective action with the S-matrix element of one RR and one NSNS vertex operators, indicates that there is linear curvature 2 If one includes the trace of the second fundamental form −Ω a ai Ω b bj into the definition ofR ij , then the couplings of one closed string and two open strings can be symmetric under both linear T-duality and S-duality [26]. However, there are arguments that the D-brane effective action involving gauge field can not be invariant under S-duality for higher gauge fields [27]. Requiring the effective action to be only invariant under the linear T-duality, as we are going to use in this paper, then such extension forR ij is not required.…”

Section: Introduction and Resultsmentioning

confidence: 99%

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Higher derivative corrections to the Wess-Zumino action

Jalali

Garousi

2016

Phys. Rev. D

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In the first part of this paper, we calculate the disk-level S-matrix elements of one RR, one NSNS and one NS vertex operators, and show that they are consistent with the amplitudes that have been recently found by applying various Ward identities. We show that the massless poles of the amplitude at low energy are fully consistent with the known D-brane couplings at order α ′2 which involve one RR or NSNS and two NS fields.Subtracting the massless poles, we then find the contact terms of one RR, one NSNS and one NS fields at order α ′2 . Some of these terms are reproduced by the Taylor expansion and the pull-back of two closed string couplings, some other couplings are reproduced by linear graviton in the second fundamental form and by the B-field in the gauge field extension F → F + B, in one closed and two open string couplings.In the second part, we write all independent covariant contractions of one RR, one NSNS and one NS fields with unknown coefficients. We then constrain the couplings to be consistent with the linear T-duality and with the above contact terms. Interestingly, we have found that up to total derivative terms and Bianchi identities, these constraints uniquely fix all the unknown coefficients.

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Section: Introduction and Resultsmentioning

confidence: 99%

“…This can be seen from the α ′ -expansion of Q's in (27). The integrals Q and Q 2 have no massless pole and the massless pole in Q 1 produces contact term after multiplying it with p 3 ·V ·p 3 which appear in the string amplitude (25).…”

Section: Rr (P + 3)-form B-field and Scalar Fieldmentioning

confidence: 98%

Higher derivative corrections to the Wess-Zumino action

Jalali

Garousi

2016

Phys. Rev. D

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“…In the static gauge, i.e., X a = σ a and X i = φ i , the components of the projection operator ⊥ αβ become ⊥ ab = 0, ⊥ ai = −∂ a φ i and ⊥ ij = η ij to the linear order of transverse scalar field in which we are interested. So one can extend the couplings (5) On the other hand the four open string corrections to the DBI action at α ′2 order have been found in [15]. These couplings, that appear in three families, include the couplings of four scalar fields, four gauge fields and two scalars and two gage fields.…”

Section: Introduction and Resultsmentioning

confidence: 92%

“…These couplings, that appear in three families, include the couplings of four scalar fields, four gauge fields and two scalars and two gage fields. The four scalar field couplings are [15]:…”

Section: Introduction and Resultsmentioning

confidence: 99%

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Higher derivative corrections to the DBI action at α′2 order

Velni

Jalali

2017

Phys. Rev. D

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α′ corrections to KPV: an uplifting story

Schreyer,

Venken

2023

J. High Energ. Phys.

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In earlier work, the effect of α′2 curvature corrections on the NS5-brane responsible for the decay of anti-D3-branes in the set-up of Kachru, Pearson, and Verlinde (KPV) was considered. We extend this analysis to include all known α′2 corrections to the action of an abelian fivebrane which involve not just curvature but also gauge fields and flux. We compute the value of these terms at the tip of the Klebanov-Strassler throat to obtain the α′2 corrected potential for the NS5-brane of KPV. The resulting potential provides a novel uplifting mechanism where one can obtain metastable vacua with an arbitrarily small positive uplifting potential by fine-tuning α′ corrections against the tree-level potential. This mechanism works for small warped throats, both in terms of size and contribution to the D3-tadpole, thereby sidestepping the issues associated with a standard deep warped throat uplift which are deadly in KKLT and, as we explicitly check, severely constraining in the Large Volume Scenario.

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Off-shell D-brane action at orderα′2in flat spacetime

Cited by 8 publications

References 34 publications

Higher derivative corrections to the Wess-Zumino action

Higher derivative corrections to the Wess-Zumino action

Higher derivative corrections to the DBI action at α′2 order

α′ corrections to KPV: an uplifting story

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