The Nontriviality of Trivial General Covariance: How Electrons Restrict 'Time' Coordinates, Spinors (Almost) Fit into Tensor Calculus, and 7/16 of a Tetrad Is Surplus Structure [PDF]
, 2011 It is a commonplace in the philosophy of physics that any local physical theory can be represented using arbitrary coordinates, simply by using tensor calculus. On the other hand, the physics literature often claims that spinors \emph{as such} cannot be
Pitts, J. Brian, J. Brian Pitts
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Does cosmological expansion affect local physics? [PDF]
, 2013 In this contribution I wish to address the question whether, and how, the global cosmological expansion influences local physics, like particle orbits and black hole geometries.
Domenico Giulini, Giulini, Domenico
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On the physical basis of cosmic time [PDF]
, 2008 In this manuscript we initiate a systematic examination of the physical basis for the time concept in cosmology. We discuss and defend the idea that the physical basis of the time concept is necessarily related to physical processes which could ...
Zinkernagel, Henrik, Rugh, Svend E.
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'No Success like Failure ...': Einstein's Quest for General Relativity, 1907-1920 [PDF]
, 2008 This is the chapter on general relativity for the Cambridge Companion to Einstein which I am co-editing with Christoph ...
Janssen, Michel
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The Relevance of Irrelevance: Absolute Objects and the Jones-Geroch Dust Velocity Counterexample, with a Note on Spinors [PDF]
, 2005 James L. Anderson analyzed the conceptual novelty of Einstein's theory of gravity as its lack of ``absolute objects.'' Michael Friedman's related concept of absolute objects has been criticized by Roger Jones and Robert Geroch for implausibly admitting ...
Pitts, J. Brian, J. Brian Pitts
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The dynamics of cosmological scenarios inspired by quantum gravity
, 2006 PhDIn this thesis we study the dynamics of cosmological scenarios inspired by quantum gravity. Part I investigates novel features of the semi-classical regime of homogeneous and isotropic loop quantum cosmology.
Mulryne, David James
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The Standard Model of particle physics in other universes [PDF]
, 2005 The purpose of this paper is to demonstrate how the mathematical objects and structures associated with the particle physics in other universes, can be inferred from the mathematical objects and structures associated with the particle physics in our own ...
McCabe, Gordon, Gordon Mccabe
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Indiscernibles, General Covariance, and Other Symmetries [PDF]
, 2001 Leibniz's principle of identity of indiscernibles, formulated in modern logical terms, can be applied in a uniform way to all the exact physical symmetries, including the diffeomorphism group of general relativity. The framework that results is a form of
Saunders, Simon
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Heterotic Braneworld Gravity [PDF]
, 2009 In the past decade, there has been considerable interest in braneworld scenarios where the universe lives on a brane in a higher-dimensional bulk and gravity is modified.
LEKSONO, FITRI,ARMALIVIA
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Models of wave-function collapse, underlying theories, and experimental tests
, 2013 We describe the state of the art in preparing, manipulating and detecting coherent molecular matter. We focus on experimental methods for handling the quantum motion of compound systems from diatomic molecules to clusters or biomolecules.Molecular ...
Satin, Seema +13 more
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