On Time in Quantum Physics [PDF]
First, I briefly review the different conceptions of time held by three rival interpretations of quantum theory: the collapse of the wave-packet, the pilot-wave interpretation, and the Everett interpretation (Section 2).
Butterfield, Jeremy, Jeremy Butterfield
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Why the Big Bang Singularity does not Help the Kalam Cosmological Argument for Theism [PDF]
The Big Bang singularity provides little or no evidence for creation in the finite past and hence for theism. Whether one dismisses singularities or takes them seriously, physics licenses no first moment of (space-)time.
Pitts, J. Brian
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Gauge-Invariant Localization of Infinitely Many Gravitational Energies from All Possible Auxiliary Structures [PDF]
The problem of finding a covariant expression for the distribution and conservation of gravitational energy-momentum dates to the 1910s. A suitably covariant infinite-component localization is displayed, reflecting Bergmann's realization that there are ...
Pitts, J. Brian, J. Brian Pitts
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Quantum Gravity: Has Spacetime Quantum Properties? [PDF]
The conceptual incompatibility between General Relativity and Quantum Mechanics is generally seen as a sufficient motivation for the development of a theory of Quantum Gravity. If - so a typical argumentation - Quantum Mechanics gives a universally valid
Hedrich, Reiner
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The relativity of inertia and reality of nothing [PDF]
The determination of inertia by matter is looked at in general relativity, where inertia can be represented by affine or projective structure. The matter tensor T seems to underdetermine affine structure by ten degrees of freedom, eight of which can be ...
Afriat, Alexander +4 more
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Quantum Gravity: A Primer for Philosophers. [PDF]
‘Quantum Gravity’ does not denote any existing theory: the field of quantum gravity is very much a ‘work in progress’. As you will see in this chapter, there are multiple lines of attack each with the same core goal: to find a theory that unifies, in ...
Rickles, Dean
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A First Class Constraint Generates Not a Gauge Transformation, But a Bad Physical Change: The Case of Electromagnetism [PDF]
In Dirac-Bergmann constrained dynamics, a first-class constraint typically does not _alone_ generate a gauge transformation. By direct calculation it is found that each first-class constraint in Maxwell's theory generates a change in the electric field ...
Pitts, J. Brian, J. Brian Pitts
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Recent Conceptual Consequences of Loop Quantum Gravity. Part I: Foundational Aspects. [PDF]
Conceptual consequences of recent results in loop quantum gravity are collected and discussed here in view of their implications for a modern philosophy of science which is mainly understood as one that totalizes scientific insight so as to eventually ...
Zimmermann, Rainer E.
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braneworld cosmology and holography [PDF]
This thesis is devoted to studying two important aspects of braneworld physics: their cosmology and their holography. We examine the Einstein equations induced on a general (n - 2)-brane of arbitrary tension, embedded in some n-dimensional bulk.
Padilla, Antonio
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String Theory – Nomological Unification and the Epicycles of the Quantum Field Theory Paradigm [PDF]
String Theory is the result of the conjunction of three conceptually independent elements: (i) the metaphysical idea of a nomological unity of the forces, (ii) the model-theoretical paradigm of Quantum Field Theory, and (iii) the conflict resulting from ...
Hedrich, Reiner
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