Dual Theories: ‘Same But Different’ or ‘Different But Same’?

Publication Year:
2014
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Repository URL:
http://philsci-archive.pitt.edu/id/eprint/11354
Author(s):
Rickles, Dean
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preprint description
I argue that, under the glitz, dual theories are examples of theoretically equivalent descriptions of the same underlying physical content: I distinguish them from cases of genuine underdetermination on the grounds that there is no real incompatibility involved between the descriptions. The incompatibility is at the level of unphysical structure. I argue that dual pairs are in fact very strongly analogous to gauge- related solutions even for dual pairs that look the most radically distinct, such as AdS/CFT.