Euclidian 4d quantum gravity with a non-trivial measure term

TY - JOUR

T1 - Euclidian 4d quantum gravity with a non-trivial measure term

AU - Ambjørn, Jan

AU - Glaser, Lisa

AU - Görlich, Andrzej

AU - Jurkiewicz, J.

PY - 2013/10/16

Y1 - 2013/10/16

N2 - We explore an extended coupling constant space of 4d regularized Euclidean quantum gravity, defined via the formalism of dynamical triangulations. We add a measure term which can also serve as a generalized higher curvature term and determine the phase diagram and the geometries dominating in the various regions. A first order phase transition line is observed, but no second order transition point is located. As a consequence we cannot attribute any continuum physics interpretation to the so-called crinkled phase of 4d dynamical triangulations.

AB - We explore an extended coupling constant space of 4d regularized Euclidean quantum gravity, defined via the formalism of dynamical triangulations. We add a measure term which can also serve as a generalized higher curvature term and determine the phase diagram and the geometries dominating in the various regions. A first order phase transition line is observed, but no second order transition point is located. As a consequence we cannot attribute any continuum physics interpretation to the so-called crinkled phase of 4d dynamical triangulations.

U2 - 10.1007/JHEP10(2013)100

DO - 10.1007/JHEP10(2013)100

M3 - Journal article

SN - 1126-6708

VL - 2013

JO - Journal of High Energy Physics (Online)

JF - Journal of High Energy Physics (Online)

IS - 10

M1 - 100

ER -