Perturbative string theory from Newtonian limit of string geometry theory
نویسندگان
چکیده
منابع مشابه
DEVELOPMENT IN STRING THEORY
The string theory is a fast moving subject, both physics wise and in the respect of mathematics. In order to keep up with the discipline it is important to move with new ideas which are being stressed. Here I wish to give extracts from new papers of ideas which I have recently found interesting. There are six papers which are involved: I ."Strings formulated directly in 4 dimensions " A. N...
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دو هدف را برای انجام این پایان نامه دنبال می کنیم . نشان می دهیم که بسط دامنه پراکندگی یک میدان راموند-راموند دو میدان پیمانه ای و یک میدان تاکیونی caat بسط سازگاری است که این نکته بیانگر آنست که بسط تاکیونها که بسط انرژی پایین نیست را یافته ایم و این بسط با بسط aatt,ctta,cta,cttt سازگار است با مقایسه با دامنه پراکندگی تعدادی از تصحیحات کنشهای tachyonic dbi, wess-zumino را می یابیم .
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We develop a method in which it is possible to calculate one loop corrections to the noncommutativity parameter found for open strings in a background Fμν field. We first reproduce the well known disk results for θ μν . We then consider the case of charged and neutral open strings on the brane, and show in both cases that the result is the same as in the disk case, apart from a multiplicative f...
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Preface In my thesis work I have mainly considered two-dimensional gravity and string theory, treated with matrix models and with two-dimensional topological quantum eld theory. The main emphasis has been laid on the case of pure gravity, where calculations are less involved, though still voluminous. When the string moves through the embedding space it spans out a two-dimensional surface, the s...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2020
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s10052-020-8255-5