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paper

Quantizing Strings in de Sitter Space

arXiv:hep-th/0701258 · doi:10.1088/1126-6708/2007/04/042

Abstract

We quantize a string in the de Sitter background, and we find that the mass spectrum is modified by a term which is quadratic in oscillating numbers, and also proportional to the square of the Hubble constant.

13 pages. Version published in JHEP