Properties of the wormhole calculus

Details Properties of the wormhole calculus Properties of the wormhole calculus

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvd..39..452a&link_type=abstract

Physical Review D (Particles and Fields), Volume 39, Issue 2, 15 January 1989, pp.452-461

Mathematics

Logic

5

Scientific paper

We adapt the rules, used by Coleman in the context of Euclidean gravity to show that the cosmological constant vanishes, to the simpler case of a scalar field theory. We compute one- and two-point functions in a variety of examples and in various approximations. We discover cases where wormholes make first-order phase transitions disappear, but permit second-order transitions. We find a peculiar propagator for a scalar field coupled quadratically to wormholes in the Hartree-Fock approximation. We discuss various ways to deal with the divergences caused by arbitrarily large numbers of subuniverses.

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