Closed strings in Misner space: cosmological production of winding strings
نویسندگان
چکیده
منابع مشابه
Closed Strings in Misner Space
Misner space, also known as the Lorentzian orbifold R1,1/boost, is one of the simplest examples of a cosmological singularity in string theory. In this work, the study of weakly coupled closed strings on this space is pursued in several directions: (i) physical states in the twisted sectors are found to come in two kinds: short strings, which wind along the compact space-like direction in the c...
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We compute correlation functions of closed strings in Misner space, a big crunch big bang universe. We develop a general method for correlators with twist fields, which are relevant for the investigation on the condensation of winding tachyon. We propose to compute the correlation functions by performing an analytic continuation of the results in C/ZN Euclidean orbifold. In particular, we obtai...
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Misner space, also known as the Lorentzian orbifold R1,1/boost, is the simplest tree-level solution of string theory with a cosmological singularity. We compute tree-level scattering amplitudes involving twisted states, using operator and current algebra techniques. We find that, due to zero-point quantum fluctuations of the excited modes, twisted strings with a large winding number w are fuzzy...
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Correlation functions of one-unit spectral flowed states in string theory on AdS3 are considered. We present a formalism which allows to explicitly find the modified Knizhnik-Zamolodchikov and null vector equations to be satisfied by amplitudes of states in w = 1 sectors. We give a precise prescription to solve this system of linear differential equations in cases that are relevant to obtain th...
متن کاملVeneziano amplitude for winding strings.
String configurations with nonzero winding number describe soliton string states. We compute the Veneziano amplitude for the scattering of arbitrary winding states and show that in the large radius limit the strings always scatter trivially and with no change in the individual winding numbers of the strings. In this limit, then, these states scatter as true solitons.
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ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2004
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2004/08/004