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The authors build an argument independent of string theory, using unitarity and other conditions, to show that consistent quantum gravities with sixteen supercharges are possible only with a limited number… Click to show full abstract
The authors build an argument independent of string theory, using unitarity and other conditions, to show that consistent quantum gravities with sixteen supercharges are possible only with a limited number of gauge groups. In turn, it is known that each of these allowed gauge groups is realized in string theory. This is part of a larger program for different amounts of supersymmetry, which so far seems to confirm the string lamppost principle which states that each consistent quantum gravity is realized in string theory.
Journal Title: Physical Review D
Year Published: 2020
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