From Strings to Things: AdS/CFT Correspondence in Particle Physics and Condensed Matter

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A. Rosch, M. Zirnbauer (Köln)

Monday, alternating: Bonn (HS 1, Physical Institute, 16:15 - 17:45) and Cologne (library, Institute of Nuclear Physics, 16:30 - 18:00)

**Preliminary meeting (Vorbesprechung):
19.10., both in Cologne (nuclear physics library) and in Bonn **

**Background material:**
http://adscmt-m09.wikispaces.com

In the last few years there has been an exciting development in the area of string theory. Like a hologram which encodes a 3d picture in a 2d photo, a d-dimensional quantum field theory (describing e.g. a strange phase in a solid or something related to QCD) encodes the information of a d+1 dimensional theory of gravity. This has practical consequences: one can compute physical properties of certain large- N limits of quantum field theories just by solving simple classical equations in a curved space (the Anti-de-Sitter, AdS, space). This allows to calculate experimentally measurable quantities, e.g., an optical conductivity. Basic phenomena like temperature or dissipation arise directly from the properties of black holes. This seminar gives a first glimpse in a rapidly developing field still characterized more by open questions than answers. A previous knowledge of quantum field theory is necessary, also a basic background in general relativity is useful, a knowledge of string theory is not required for this seminar.

Date | Speaker | Topic | Supervisor |
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19.10.09 | -- | Preliminary meeting | |

2.11.09 | M. Zacharias | General Relativitiy and black holes (Einstein's field equations, Schwarzschild solution, Hawking radiation) | -- |

9.11.09 | D. Lopez | General relativity with negative cosmological constant (anti-de Sitter (AdS) space, black holes in AdS, Penrose diagram, reparametrizations) | |

16.11.09 | S. Schmittner, S. Mandt | The limit of large N in solid state physics (mean field equations, slave particles) | -- |

23.11.09 | M. Rauch | The matrix-large N limit (random matrix theory, planar diagrams) | -- |

30.11.09 | Tae-Won Ha | Strings and dualities in pictures | -- |

7.12.09 | T. Meng | Emergent Gauge theory in solid state physics (nematics as Z2 Gauge theories) | -- |

14.12.09 | M. Poretchkin | The holographic principle: a receipt for calculating correlation functions I (matching field and operators, scaling dimensions) | |

21.12.09 | D. Klever | The holographic principle: a receipt for calculating correlation functions II (finite temperatures and black holes) | |

11.1.10 | --- | No seminar! | -- |

18.1.10 (Bonn!) | G. Sukumaran | The Maldacena duality (supersymmetric N+4 Yang-Mills theory is dual to type IIB string theory) | -- |

25.1.10 | M. Trujillo Martinez | applied AdS-CMT: optical conductivity | -- |

1.2.10 | M. Schäfer | applied AdS-CMT: Langevin equations | -- |