Results 11 to 20 of about 616,096 (295)
String theory and inflation [PDF]
25 ...
Alexander Vilenkin, Thibault Damour
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Oriented Open-Closed String Theory Revisited [PDF]
String theory on D-brane backgrounds is open-closed string theory. Given the relevance of this fact, we give details and elaborate upon our earlier construction of oriented open-closed string field theory.
Alvarez-Gaume+30 more
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Semiclassical Quantization of Effective String Theory and Regge Trajectories [PDF]
We begin with an effective string theory for long distance QCD, and evaluate the semiclassical expansion of this theory about a classical rotating string solution, taking into account the the dynamics of the boundary of the string.
A.A. Abrikosov+25 more
core +2 more sources
I review the arguments in favor of/against the traditional hypothesis that the Planck, string and compactification scales are all within a couple of orders of magnitude from each other. I explain how the extreme brane-world scenario, with TeV type I scale and two large (near millimetric) transverse dimensions, creates conditions analogous to those of ...
openaire +5 more sources
Superradiance in string theory [PDF]
Abstract We perform an extensive analysis of the statistics of axion masses and interactions in compactifications of type IIB string theory, and we show that black hole superradiance excludes some regions of Calabi-Yau moduli space. Regardless of the cosmological model, a theory with an axion whose mass falls in a superradiant band can ...
Mehta, Viraf M.+5 more
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String theory: an update [PDF]
20 pages, 2 figures, uses espcrc2.sty, v2: several references added, apologies for the delay in submitting this updated ...
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Monopoles in string theory [PDF]
A realization of E_{n+1} monopoles in string theory is given. The NS five brane stuck to an Orientifold eight plane is identified as the 't Hooft Polyakov monopole. Correspondingly, the moduli space of many such NS branes is identified with the moduli space of SU(2) monopoles.
Alberto Zaffaroni, Amihay Hanany
openaire +3 more sources
Linear Dilatons, NS5-branes and Holography [PDF]
We argue that vacua of string theory which asymptote at weak coupling to linear dilaton backgrounds are holographic. The full string theory in such vacua is ``dual'' to a theory without gravity in fewer dimensions.
Aharony, Ofer+3 more
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ON THE UNIQUENESS OF STRING THEORY [PDF]
We show that bosonic strings may be viewed as a particular class of vacua for N=1 superstrings, and N=1 superstrings may be viewed as a particular class of vacua for N=2 strings. Continuing this line of string hierarchies, we are led to search for a universal string theory which includes all the rest as a special vacuum selection.
Berkovits, Nathan, Vafa, Cumrun
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Matrix string interactions [PDF]
String configurations have been identified in compactified Matrix theory at vanishing string coupling. We show how the interactions of these strings are determined by the Yang-Mills gauge field on the worldsheet.
Banks+7 more
core +2 more sources