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Making Precise the Nothing at the Beginning of the Universe

Making Precise the Nothing at the Beginning of the Universe. Yu Nakayama, hep-th/0606127 (Collaboration with S.J. Rey, Y. Sugawara). Introduction. Universe begins from the singularity .

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372 views • 25 slides

Emergence of Fluctuations from a Tachyonic Big Bang

Emergence of Fluctuations from a Tachyonic Big Bang. Sugumi Kanno McGill University. work with Robert H. Brandenberger &amp; Andrew R. Frey PRD 76, 083524 (2007); arXive:0706.1104 [hep-th]. Introduction. One of the most important problems in cosmology is the existence of singularity.

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175 views • 15 slides

Tachyon Condensation in SFT

Tachyon Condensation in SFT. Bosonic String - Tachyon. Sen's Conjectures (1999). Brane Tension = Vacuum Energy. Tachyon Condensation in SFT. Tachyon in GSO ( - ). Level truncation. Tachyon Condensation in S SFT. Vertex operators in pictures –1 and 0. E.Witten,(1986).

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108 views • 8 slides

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