String Theory


After reviewing the original motivation for the formulation of string theory and what we learned from it, I discuss some of the implications of the holographic principle and of string dualities for the question of the building blocks of nature.

This is a preview of subscription content, access via your institution.


  1. 1.

    Nambu, Y.: Quark model and the factorization of the Veneziano amplitude. In: Symmetries and Quark Models, pp. 269–278. Detroit (1969)

    Google Scholar 

  2. 2.

    Eguchi, T., et al. (eds.): Broken Symmetry, pp. 258–267 (1969)

  3. 3.

    Susskind, L.: Dual-symmetric theory of hadrons. 1. Nuovo Cimento A 69S10, 457 (1970)

    MathSciNet  ADS  Article  Google Scholar 

  4. 4.

    ’t Hooft, G.: A planar diagram theory for strong interactions. Nucl. Phys. B 72, 461 (1974)

    MathSciNet  ADS  Article  Google Scholar 

  5. 5.

    Polchinski, J.: Dirichlet Branes and Ramond-Ramond charges. Phys. Rev. Lett. 75, 4724 (1995). arXiv:hep-th/9510017

    MathSciNet  ADS  MATH  Article  Google Scholar 

  6. 6.

    Maldacena, J.M.: The large N limit of superconformal field theories and supergravity. Adv. Theor. Math. Phys. 2, 231 (1998) [Int. J. Theor. Phys. 38, 1113 (1999)]. arXiv:hep-th/9711200

    MathSciNet  ADS  MATH  Google Scholar 

  7. 7.

    ’t Hooft, G.: Dimensional reduction in quantum gravity (2009). arXiv:gr-qc/9310026

  8. 8.

    Susskind, L.: The world as a hologram. J. Math. Phys. 36, 6377 (1995). arXiv:hep-th/9409089

    MathSciNet  ADS  MATH  Article  Google Scholar 

Download references

Author information



Corresponding author

Correspondence to Leonard Susskind.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Susskind, L. String Theory. Found Phys 43, 174–181 (2013).

Download citation


  • Black Hole
  • String Theory
  • Higgs Boson
  • Minimal Supersymmetric Standard Model
  • Open String