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Unification of Decoupling Limits in String and M Theory.

Chris D A Blair1, Johannes Lahnsteiner2, Niels A J Obers2,3

  • 1Instituto de Física Teórica UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, Madrid 28049, Spain.

Physical Review Letters
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Summary

This study explores the duality web connecting type II superstring theories and M theory. It reveals new links to various string theory limits in curved backgrounds.

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Area of Science:

  • Theoretical Physics
  • String Theory
  • Quantum Gravity

Background:

  • Type II superstring theories and M theory exhibit complex dualities.
  • Understanding these dualities is crucial for a unified theory of quantum gravity.
  • Various limits of string theory, like matrix and tensionless theories, offer insights.

Purpose of the Study:

  • To systematically study and extend the duality web of type II superstring theories and M theory.
  • To establish connections between different decoupling limits.
  • To analyze these limits in arbitrary curved backgrounds.

Main Methods:

  • Investigating the mathematical framework of string theory dualities.
  • Building systematic connections to diverse theoretical limits.
  • Analyzing target space, world sheet, and worldvolume aspects.

Main Results:

  • Extended the duality web unifying type II superstring and M theories.
  • Established novel connections to matrix theories, nonrelativistic string theory, tensionless string theory, Carrollian string theory, and spin matrix limits of AdS/CFT.
  • Characterized these limits in arbitrary curved backgrounds.

Conclusions:

  • The duality web provides a powerful framework for unifying different string theory regimes.
  • These connections offer new avenues for exploring quantum gravity and its manifestations.
  • Understanding these limits in curved spacetime is essential for future developments.