String Theory and Quantum Field Theory
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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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This elementary introduction to string field theory highlights the features and the limitations of this approach to quantum gravity as it is currently understood. String field theory is a formulation of string theory as a field theory in space-time with an infinite number of massive fields. Although existing constructions of string field theory require expanding around a fixed choice of space-t...
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Bianchi type-VI0 space time with strange quark matter attached to string cloud in Nordtvedt [1] general scalar tensor theory of gravitation with the help of a special case proposed by Schwinger [2] is obtained. The field equations have been solved by using the anisotropy feature of the universe in the Bianchi type-VI0 space time. Some important features of the model, thus obtained, have been di...
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A geometric interpretation of quantum self–interacting string field theory is given. Relations between various approaches to the second quantization of an interacting string are described in terms of the geometric quantization. An algorythm to construct a quantum nonperturbative interacting string field theory in the quantum group formalism is proposed. Problems of a metric background (in)depen...
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The issue of talent-discovering is one of the most important issues in the field of education and research that has always been a concern for educational systems. Studying the issues of identifying and guiding talented students can illuminate a large part of the activities of the executors and practitioners in order to accomplish their mission effectively. On the other hand, quantum physics has...
متن کاملMagnetic Backgrounds and Noncommutative Field Theory
• Introduction • Strong Magnetic Fields (a) The Landau problem (b) The lowest Landau level (c) Field theory • String Theory and D-Branes (a) Noncommutative geometry in string theory (b) D-branes (c) String theory in magnetic fields • Noncommutative Quantum Field Theory (a) Fundamental aspects (b) UV/IR mixing (c) Gauge interactions (d) Violations of special relativity • The Fractional Quantum H...
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تاریخ انتشار 2014