# Tag Info

2

Here is a very "quick and dirty" way to get the result, too long for a comment so I'll post it as an answer: Although condensation is essentially a quantum phenomena, for many purposes it is sufficient to think at the classical level, e.g. Meissner effect. The Maxwell electrodynamics with both electric and magnetic charges famously has a $S$-duality ...

4

The AdS/CFT correspondence (or this particular, most famous example of it) is the equivalence between the non-gravitational ${\mathcal N}=4$ supersymmetric Yang-Mills theory on one side ("the boundary CFT"); and the type IIB superstring theory in $AdS_5\times S^5$ ("the bulk theory") on the other side. The equivalence is exact and the gauge theory is ...

0

See this wikipedia article. It is probable the "S" stands for Spanier as in Edwin Spanier.

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