One of the jibes against string theory has been that it can’t be verified, since the energy level where “stringiness” should appear is far beyond experimental capability. However, researchers have found that certain mathematical solutions in string theory can be applied to relatively low-energy problems in many-body physics. This so-called holographic correspondence has provided insights into superconductors, hydrodynamics, and chaos. From this success, a new field has emerged in which holographists use models of black holes to uncover new relationships in the matter around us.
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