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This paper is an analysis of the geometrical interpretation of local gauge symmetry for theories of the Yang-Mills type.
General Covariance, Gauge Theories and the Kretschmann Objection.
the Kretschmann Objection Gauge Theories General Covariance
2008/4/14
How can we reconcile two claims that are now both widely accepted: Kretschmann's claim that a requirement of general covariance is physically vacuous and the standard view that the general covariance ...
Gauge Theories and Holisms
holism gauge nonseparability
2008/4/14
Those looking for holism in contemporary physics have focused their attention primarily on quantum entanglement. But some gauge theories arguably also manifest the related phenomenon of nonseparabilit...
According to conventional wisdom, local gauge symmetry is not a symmetry of nature, but an artifact of how our theories represent nature. But a study of the so-called theta-vacuum appears to refute th...
Gauge Matters
Gauge Matters
2008/4/14
The constrained Hamiltonian formalism is recommended as a means for getting a grip on the concepts of gauge and gauge transformation. This formalism makes it clear how the gauge concept is relevant to...
Gauge Gravity and the Unification of Natural Forces
the Unification of Natural Forces Gauge Gravity
2008/4/14
Physics seems to tell us that there are four fundamental force-fields in nature: the gravitational, the electromagnetic, the weak, and the strong force-field (or interactions). But it also seems to te...
Curve It, Gauge It, or Leave It? Practical Underdetermination in Gravitational Theories
general relativity gauge theory theory underdetermination
2008/4/11
Four empirically equivalent versions of general relativity,
namely standard GR, Lorentz-invariant gravitational theory,
and the gravitational gauge theories of the Lorentz and
translation groups, a...
In a recent paper in the British Journal for the Philosophy of Science, Kosso discussed the observational status of continuous symmetries of physics. While we are in broad agreement with his approach,...
An Elementary Notion of Gauge Equivalence
Gauge Equivalence Asymptotic Boundary Conditions
2008/4/10
An elementary notion of gauge equivalence is introduced that does not require any Lagrangian or Hamiltonian apparatus. It is shown that in the special case of theories, such as general relativity, who...
The elucidation of the gauge principle "is the most pressing problem in current philosophy of physics" Michael Redhead in 2003. This paper argues for two points that contribute to this elucidation in ...