Conformal Theories and Strings on Orbifolds
Conformal Theories and Strings on Orbifolds
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发表时间:
1998
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通讯作者:
S. Kachru;E. Silverstein
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作者:
S. Kachru;E. Silverstein
We propose correspondences between 4d quantum eld theories with N = 2; 1; 0 (super)conformal invariance and Type IIB string theory on various orbifolds. We argue using the spacetime string theory, and check using the beta functions (exactly for N = 2 ; 1 and so far at 1-loop for the gauge couplings in the N = 0 case), that these theories have confor-mal xed lines. The latter case potentially gives well-dened non-supersymmetric vacua of string theory, with a mechanism for making the curvature and cosmological constant small at nontrivial string coupling. February 1998