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A comment on effective field theories of flux vacua

Shamit Kachru, Sandip Trivedi

Abstract

We discuss some basic aspects of effective field theory applied to supergravity theories which arise in the low-energy limit of string theory. Our discussion is particularly relevant to the effective field theories of no-scale supergravities that break supersymmetry, including those that appear in constructing de Sitter solutions of string theory.

A comment on effective field theories of flux vacua

Abstract

We discuss some basic aspects of effective field theory applied to supergravity theories which arise in the low-energy limit of string theory. Our discussion is particularly relevant to the effective field theories of no-scale supergravities that break supersymmetry, including those that appear in constructing de Sitter solutions of string theory.

Paper Structure

This paper contains 10 sections, 39 equations, 1 figure.

Table of Contents

  1. Introduction
  2. The Polonyi model
  3. Basic facts
  4. Stabilizing the runaway
  5. Heterotic strings and no-scale structure
  6. Type IIB flux vacua
  7. Basic facts
  8. Energy scales
  9. Additional comments
  10. Discussion

Figures (1)

  • Figure 1: Various energy scales in a class of IIB flux vacua. $M_{Pl}$: 4 dimensional Planck scale, $M_{st}$: string scale, $M_{KK}$: Kaluza-Klein mass, $R$: radius of compactification, $M_{cs}$: mass of complex structure moduli and dilaton, $\Lambda$: scale of non-perturbative dynamics, $M_\rho$: mass of $\rho$ modulus, $m_{\tilde{g}}$ mass of gravitino, $m_{soft}$: soft susy breaking mass. $\sigma_0=R^4 M_{st}^4$, $a$ given in eq.(\ref{['supa']}).