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# Quantum Fields and Strings

This series consists of talks in the area of Quantum Fields and Strings.

## Seminar Series Events/Videos

Currently there are no upcoming talks in this series.

## Building chiral flux vacua

Mardi mar 08, 2005
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## Dark Insights from Light - Cosmology and the CMB

Lundi mar 07, 2005
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The cosmic microwave background (CMB) is our most direct cosmological observable, encoding critical information about the evolution and development of the universe. The Wilkinson Microwave Anisotropy Probe (WMAP) has measured the angular power spectrum of the CMB temperature and temperature-polarization power spectra with unprecedented accuracy from its first year in flight.

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## Geometry of Fast Moving Strings

Mardi mar 01, 2005
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It was conjectured that the N=4 Yang-Mills perturbation theory in the sector with large R charges corresponds to considering the classical string worldsheets in $AdS_5imes S^5$ as perturbations of the null-surfaces. We discuss this perturbation theory with a special emphasis on a hidden symmetry.

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## Fermions from Half-BPS Supergravity

Mercredi fév 23, 2005
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We discuss collective coordinate quantization of the half-BPS geometries of Lin, Lunin and Maldacena (hep-th/0409174). The LLM geometries are parameterized by a single function u on a plane. We treat this function as a collective coordinate. We arrive at the collective coordinate action as well as path integral measure by considering D3 branes in an arbitrary LLM geometry. The resulting functional integral is shown, using known methods (hep-th/9309028), to be the classical limit of a functional integral for free fermions in a harmonic oscillator.

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## On charged black holes in AdS space

Mardi fév 22, 2005
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## Holographic description of AdS cosmologies

Mardi fév 22, 2005
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## Codimension two braneworlds, Episode 2: The cosmological constant strikes back

Lundi fév 21, 2005
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## Topics in collapse

Mercredi fév 16, 2005
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## An informal update on little string theories

Lundi fév 14, 2005
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## Counting Enhanced Symmetries in Flux Vacua

Mardi fév 01, 2005
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## LECTURES ON-DEMAND

### Gabriela González, Louisiana State University

Speaker: Gabriela Gonzalez