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X-WR-CALNAME:Philosophy, Logic and Scientific Method
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BEGIN:VEVENT
DTSTART;TZID=Europe/London:20140317T171500
DTEND;TZID=Europe/London:20140317T184500
DTSTAMP:20161127T213052
CREATED:20140922T154449
LAST-MODIFIED:20140922T154449
UID:515-1395076500-1395081900@www.lse.ac.uk
SUMMARY:Hans Halvorson (Princeton): Explanation via surplus structure
DESCRIPTION:Our attempts to model physical systems seem to be cursed by the problem of surplus structure: our mathematical representations of such\nsystems contain structure which apparently has no analogue in the\n\nsystem under study. When interpreting our theories; then; we invoke\n\nsome notion of "physical equivalence" of models in order to wash out\n\nthis surplus structure.\n\n\n\nAt least that's how the story is typically told. I will argue; in\n\ncontrast; that surplus structure can itself be explanatory.\n\n\n\nFor concreteness; I will focus on the case of surplus structure in\n\nquantum field theory. I will show that explanations in QFT trade on\n\nthe fact that there are multiple "representations" that are\n\nnonetheless mathematically isomorphic.
URL:http://www.lse.ac.uk/philosophy/events/hans-halvorson-princeton-explanation-via-surplus-structure/
CATEGORIES:Sigma Club
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