Shows
MCMP – Philosophy of ScienceNovelty and autonomy as bases for, or alternatives to, a conception of emergence in physicsKaren Crowther (Sydney) gives a talk at the MCMP conference "Reduction and Emergence in the Sciences" (14-16 November, 2013) titled "Novelty and autonomy as bases for, or alternatives to, a conception of emergence in physics". Abstract: An effective theory in physics is one that is supposed to apply only at a given length (or energy) scale; the framework of effective field theory (EFT) describes a ‘tower’ of theories each applying at different length scales, where each ‘level’ up is a shorter-scale theory. A subtlety regarding the use and necessity of EFTs means that any conception of emergence related to reduction is irreleva...2014-01-2826 minMCMP – Philosophy of PhysicsEmergent spacetime in condensed matter analogues of general relativityKaren Crowther (Sydney) gives a talk at the MCMP Colloquium (13 November, 2013) titled "Emergent spacetime in condensed matter analogues of general relativity". Abstract: It has been claimed, based on a few different lines of reasoning, that the notion of spacetime will not appear in a quantum theory of gravity. If this is the case, then spacetime is an emergent concept. Analogue models of general relativity based in condensed matter systems present us with concrete examples of emergent spacetime, and could potentially help us understand the nature of emergent spacetime in the context of quantum gravity. These models present a curved spacetime...2014-01-2300 minMCMP – Philosophy of PhysicsComment on Daniele Oriti's "Dissappearance and Emergence of Space and Time in Quantum Gravity"Karen Crowther (Sydney) comments on Daniele Oriti's "Dissappearance and Emergence of Space and Time in Quantum Gravity" at the MCMP workshop "Quantum Gravity in Perspective" (31 May-1 June, 2013).2013-10-0900 min