All order α′ corrections to fermionic couplings of D-brane-Anti-D-brane effective actions

Hatefi, Ehsan

doi:10.1088/1475-7516/2019/05/044

Cited by 3 publications

(2 citation statements)

References 130 publications

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“…We note that unless the field strengths on the D-and D-brane are treated separately, the EFT residues in the gauge channel cannot be made to match the string results even to the leading order in α . The modification of the EFT Lagrangian proposed here can also be motivated by the structure of EFT couplings on the DD system including fermions, viz.ψ 2 γ a T ψ 1 D a T and ψ 1 D a Tψ 2 γ a T , found recently in [93].…”

Section: Jhep05(2021)245mentioning

confidence: 96%

“…The S-matrix element for scattering of one RR particle and four tachyons on a DD-brane is given in[91], and its relation to the Veneziano amplitude[92] is spelled out in there as well. Moreover, the allorder corrections to fermionic couplings[93] as well as a power series representation of the corresponding string amplitudes were obtained well beyond the factorized limit in[90] 5. If D is a differential operator acting in an algebra of functions, then we use the convention Df g ≡ (Df )g.…”

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All-order quartic couplings in highly symmetric D-brane-anti-D-brane systems

Hatefi

Sundell

2021

J. High Energ. Phys.

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We compute six-point string amplitudes for the scattering of one closed string Ramond-Ramond state, two tachyons and two gauge fields in the worldvolume of D-brane-anti-D-brane systems in the Type II superstring theories. From the resulting S-matrix elements, we read off the precise form of the couplings, including their exact numerical coefficients, of two tachyons and two gauge fields in the corresponding highly symmetric effective field eheory (EFT) Lagrangian in the worldvolume of D-brane-Anti-D-brane to all orders in α′, which modify and complete previous proposals. We verify that the EFT reproduces the infinite collection of stringy gauge field singularities in dual channels. Inspired by interesting similarities between the all-order highly symmetric EFTs and holographic duals of Vasiliev’s higher spin gravities à là Nilsson and Vasiliev, we make a proposal for tensionless limits of D-brane-anti-D-brane systems.

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Section: Jhep05(2021)245mentioning

confidence: 96%

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confidence: 99%

All-order quartic couplings in highly symmetric D-brane-anti-D-brane systems

Hatefi

Sundell

2021

J. High Energ. Phys.

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On special limit of non-supersymmetric effective actions of type II string theory

Hatefi

Vasko

2019

Eur. Phys. J. C

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In this paper we first address four point functions of string amplitudes in both type IIA and IIB string theories. Making use of non-BPS scattering amplitudes, we explore not only several Bianchi identities that hold in both transverse and world volume directions of brane, but also reveal various new couplings. These couplings can just be found by taking into account the mixed pull-back and Taylor couplings where their all order alpha-prime higher derivative corrections have been derived as well.For the first time, we also explore the complete form of a six point non-BPS amplitude, involving three open string tachyons, a scalar field and a Ramond-Ramond closed string in both IIA, IIB. In a special limit of the amplitude and using the proper expansion we obtain an infinite number of bulk singularities that are being constructed in the effective field theory. Finally using new couplings we construct all the other massless and tachyon singularities in type IIA, IIB string theories. All higher derivative corrections to these new couplings to all orders in α ′ and new restricted Bianchi identities have also been gained. 1Recently the generalisation of effective actions of D-brane-anti-D-brane system to all orders in alpha-prime for both Chern-Simons and Dirac-Born-Infeld (DBI) effective actions was discovered [11]. Another example would be related to tachyon condensation that has been investigated in [12] in detail. For D-brane-anti-D-brane system, once the distance between brane and anti-brane becomes smaller than the string length scale, two real tachyonic strings would appear. They are related to strings stretched from D-brane to anti-D-brane and vice versa.Here we would like to deal with N-coincident non-BPS branes and try to embed tachyonic modes and their corrections in EFT. We take non-BPS scattering amplitude formalism as a theoretical framework or laboratory to discover their effective actions, including their all order α ′ corrections in string theory in an efficient and consistent way of matching string results with EFT. To deal with the dynamics of unstable branes, we highlight the recent work done by Polchinski and collaborators [13] where various explanations within

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Canonical description of the tachyon kink in general background and Hamiltonian for Dp-brane-anti-Dp-brane system

Klusoň

2024

Int. J. Mod. Phys. A

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All order α′ corrections to fermionic couplings of D-brane-Anti-D-brane effective actions

Cited by 3 publications

References 130 publications

All-order quartic couplings in highly symmetric D-brane-anti-D-brane systems

All-order quartic couplings in highly symmetric D-brane-anti-D-brane systems

On special limit of non-supersymmetric effective actions of type II string theory

Canonical description of the tachyon kink in general background and Hamiltonian for Dp-brane-anti-Dp-brane system

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