Gauge gravity and the unification of natural forces

Abstract
Physics seems to tell us that there are four fundamental force-fields in nature: the gravitational, the electromagnetic, the weak, and the strong (or interactions). But it also seems to tell us that gravity cannot possibly be a force-field, in the same sense as the other three are. And yet the search for a grand unification of all four force-fields is today one of the hottest pursuits. Is this the result of a simple confusion? This article aims at clarifying this situation by (i) reviewing the gauge-field programme and its conception of unification of force-fields, (ii) examining the various attempts at a gauge theory of gravity, and (iii) articulating the nature of "gauging" and using it to explain the difference between gravity and the other force-fields.
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DOI 10.1080/0269859031000160612
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References found in this work BETA
Paul Teller (2000). The Gauge Argument. Philosophy of Science 67 (3):481.

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Citations of this work BETA
Holger Lyre (2004). Holism and Structuralism in (1) Gauge Theory. Studies in History and Philosophy of Science Part B 35 (4):643-670.
Gordon Belot (2003). Symmetry and Gauge Freedom. Studies in History and Philosophy of Science Part B 34 (2):189-225.
Holger Lyre (2004). Holism and Structuralism in U Gauge Theory. Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 35 (4):643-670.

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