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Emergent D-Instanton as a Source of Dark Energy

  • Deobrat SinghEmail author
  • Supriya Kar
Particles and Fields
  • 16 Downloads

Abstract

We revisit a non-perturbative formulation leading to a vacuum-created gravitational pair of \((3\bar {3})\)-brane by a Poincare dual higher form U(1) gauge theory on a D4-brane. In particular, the analysis has revealed a dynamical geometric torsion \(\mathcal {H}_{3}\) for an onshell Neveu-Schwarz (NS) form on a fat 4-brane. We argue that a D-instanton can be a viable candidate to incorporate the quintessence correction hidden to an emergent (3 + 1)-dimensional brane universe. It is shown that a dynamical non-perturbative correction may be realized with an axionic scalar QFT on an emergent anti-3-brane within a gravitational pair. The theoretical tool provokes thought to believe for an extra instantaneous dimension transverse to our classical brane-universe in an emergent scenario. Interestingly a D-instanton correction, sourced by an axion on an anti-3-brane, may serve as a potential candidate to explain the accelerated rate of expansion of our 3-brane universe and may provide a clue to the origin of dark energy.

Keywords

Dark energy Instanton String theory Axion Big Bang 

Notes

Acknowledgments

The data used to support the findings of this study are included within the article.

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Copyright information

© Sociedade Brasileira de Física 2019

Authors and Affiliations

  1. 1.Department of Physics & AstrophysicsUniversity of DelhiNew DelhiIndia
  2. 2.Department of Applied ScienceMadhav Institute of Technology and ScienceGwaliorIndia

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