A string-modified four-dimensional gravity theory |
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Authors: | J D Gegenberg |
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Institution: | (1) Department of Mathematics and Statistics, University of New Brunswick, E3B 5A3 Fredericton, New Brunswick, Canada |
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Abstract: | The route from string theory to a ten-dimensional supergravity/super-Yang-Mills field theory is briefly illumined. The process of extracting a classical four-dimensional gravity theory from the ten-dimensional theory is discussed and a simple model containing gravity, electromagnetism, a dilaton field, and a Kalb-Ramond field is proposed. The equations of motion of a test particle in a background of gravity, dilation, and Kalb-Ramond fields are displayed. Some static spherically symmetric vacuum solutions are derived, and some astrophysical implications are discussed. |
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