The KKLT Scenario for de Sitter Backgrounds in String Theory

  • Horaţiu NăstaseEmail author
Part of the Fundamental Theories of Physics book series (FTPH, volume 197)


In this chapter we will learn how to obtain de Sitter backgrounds in string theory. This is a difficult problem. In particular, there was a “no-go theorem” about the non-existence of de Sitter backgrounds in the supergravity approximation of string theory, by Juan Maldacena and Carlos Núñez. Kachru, Kallosh, Linde and Trivedi (KKLT) have shown for the first time that it is in fact possible, with the introduction of some nonperturbative string information.

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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Instituto de Física Teórica, UNESPSão PauloBrazil

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