## Abstract

Double-trace operators which are relevant deformations of large N conformal field theories give rise to renormalization group flows that can be studied on both sides of the AdS/CFT duality. One-loop calculations in AdS can be compared successfully to results derived in field theory using the Hubbard-Stratonovich transformation. The calculations do not rely on supersymmetry, and they apply in any dimension, provided the original conformal field theory and its AdS dual are well-defined. A speculative idea is proposed for solving the cosmological constant problem based on non-gravitational strings that become light as the universe expands. This is a summary of my talk presented at the Nishinomiya-Yukawa Symposium in Nishinomiya, Japan. It is based primarily on [S. S. Gubser and I. Mitra, hep-th/0210093; S. S. Gubser and I. R. Klebanov, hep-th/0212138].

Original language | English (US) |
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Pages (from-to) | 30-44 |

Number of pages | 15 |

Journal | Progress of Theoretical Physics Supplement |

Volume | 152 |

DOIs | |

State | Published - 2004 |

## All Science Journal Classification (ASJC) codes

- Physics and Astronomy (miscellaneous)