کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8943589 | 1645164 | 2006 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Stable non-supersymmetric vacua in the moduli space of non-critical superstrings
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موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
فیزیک ریاضی
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چکیده انگلیسی
We study a set of asymmetric deformations of non-critical superstring theories in various dimensions. The deformations arise as Kähler and complex structure deformations of an orthogonal two-torus comprising of a parallel and a transverse direction in the near-horizon geometry of NS5-branes. The resulting theories have the following intriguing features: Spacetime supersymmetry is broken in a continuous fashion and the masses of the lightest modes are lifted. In particular, no bulk or localized tachyons are generated in the non-supersymmetric vacua. We discuss the effects of these deformations in the context of the holographic duality between non-critical superstrings and little string theories and find solutions of rotating fivebranes in supergravity. We also comment on the generation of a one-loop cosmological constant and determine the effects of the one-loop backreaction to leading order.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Volume 759, Issues 1â2, 18 December 2006, Pages 20-49
Journal: Nuclear Physics B - Volume 759, Issues 1â2, 18 December 2006, Pages 20-49
نویسندگان
Troels Harmark, Vasilis Niarchos, Niels A. Obers,