It has recently been proposed that certain nonsupersymmetric type II orbifolds have vanishing perturbative contributions to the cosmological constant. We show that techniques of Sen and Vafa allow one to construct dual type II descriptions of these models (some of which have no weakly coupled heterotic dual). The dual type II models are given by the same orbifolds with the string coupling S and a T{sup 2} volume T exchanged. This allows us to argue that in various strongly coupled limits of the original type II models, there are weakly coupled duals which exhibit the same perturbative cancellations as the …
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Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States)
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It has recently been proposed that certain nonsupersymmetric type II orbifolds have vanishing perturbative contributions to the cosmological constant. We show that techniques of Sen and Vafa allow one to construct dual type II descriptions of these models (some of which have no weakly coupled heterotic dual). The dual type II models are given by the same orbifolds with the string coupling S and a T{sup 2} volume T exchanged. This allows us to argue that in various strongly coupled limits of the original type II models, there are weakly coupled duals which exhibit the same perturbative cancellations as the original models.
Journal Name: Journal of High Energy Physics; Journal Issue: 11; Other Information: Submitted to Journal of High Energy Physics: No.11; Journal Publication Date: 02/12/1999
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Kachru, Shamit & Silverstein, Eva.Self-dual nonsupersymmetric Type II String Compactifications,
article,
August 17, 1998;
Berkeley, California.
(https://digital.library.unt.edu/ark:/67531/metadc780221/:
accessed April 23, 2024),
University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu;
crediting UNT Libraries Government Documents Department.
