ar X iv : h ep - t h / 01 05 20 0 v 3 2 7 Ju l 2 00 1 Correlators in AdS 3 string theory
نویسندگان
چکیده
The computation of two and three point functions in the Coulomb gas free field approach to string theory in the SL(2,R)/U(1) black hole background is reviewed. An interesting relation arises when comparing the results obtained using two different screening operators. The formalism is then modified to study string theory propagating in AdS3 which is considered as the direct product of the SL(2)/U(1) coset times a timelike free boson. This representation allows to naturally include the spectral flow symmetry and winding number in vertex operators and correlation functions. Two and three point tachyon amplitudes are computed in this new scenario and the results coincide with previous reports in the literature. Novel expressions are found for processes violating winding number conservation.
منابع مشابه
ar X iv : h ep - t h / 05 06 19 7 v 1 2 3 Ju n 20 05 The emergence of noncommutative target space in noncritical string theory Jan
We show how a noncommutative phase space appears in a natural way in noncritical string theory, the noncommutative deformation parameter being the string coupling.
متن کاملar X iv : h ep - t h / 05 03 04 3 v 3 1 8 Ju l 2 00 5 TAUP -
We study closed N = 2 strings on orbifolds of the form T /Z2 and C /Z2. We compute the torus partition function and prove its modular invariance. We analyze the BRST cohomology of the theory, construct the vertex operators, and compute three and four point amplitudes of twisted and untwisted states. We introduce a background of D-branes, and compute twist states correlators.
متن کاملar X iv : h ep - t h / 05 06 19 7 v 2 2 4 Ju n 20 05 The emergence of noncommutative target space in noncritical string theory
We show how a noncommutative phase space appears in a natural way in noncritical string theory, the noncommutative deformation parameter being the string coupling.
متن کاملar X iv : h ep - t h / 05 12 01 7 v 2 1 2 D ec 2 00 5 Dynamics of chiral primaries in AdS 3 × S 3 × T 4
We study in more detail the dynamics of chiral primaries of the D1/D5 system . From the CFT given by the Sn orbifold a study of correlators resulted in an interacting (collective) theory of chiral operators. In AdS3×S SUGRA we concentrate on general 1/2 BPS configurations described in terms of a fundamental string .We first establish a correspondence with the linerized field fluctuations and th...
متن کاملar X iv : h ep - t h / 05 01 14 3 v 1 1 9 Ja n 20 05 CCNY - HEP - 05 / 1 January 2005 A Note on MHV Amplitudes for Gravitons
We show how the maximally helicity violating (MHV) scattering amplitudes for gravitons can be related to current correlators and vertex operators in twistor space. This is similar to what happens in Yang-Mills theory and raises the possibility of a direct twistor-string-like construction for N = 8 supergravity.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2008