Constraints on Hamiltonian lattice formulations of field theories in an expanding universe

Details Constraints on Hamiltonian lattice formulations of field theories in an expanding universe Constraints on Hamiltonian lattice formulations of field theories in an expanding universe

Dec 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985phrvd..32.3228w&link_type=abstract

Physical Review D (Particles and Fields), Volume 32, Issue 12, 15 December 1985, pp.3228-3232

Physics

5

Lattice Gauge Theory, Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

A consistent formulation of lattice field theories in Robertson-Walker spaces is not possible in comoving coordinates. For renormalizable lattice theories, physical results do not agree with results obtained using dimensional regularization. Coordinate systems where such a formulation may be possible are described. Problems with quantization with these ``fixed-distance'' coordinate systems are discussed.

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