کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1849115 | 1528813 | 2015 | 5 صفحه PDF | دانلود رایگان |
We study matter with central charge c>1c>1 coupled to two-dimensional (2d) quantum gravity, here represented as causal dynamical triangulations (CDT). The 2d CDT is known to provide a regularization of (Euclidean) 2d Hořava–Lifshitz quantum gravity. The matter fields are massive Gaussian fields, where the mass is used to monitor the central charge c . Decreasing the mass we observe a higher order phase transition between an effective c=0c=0 theory and a theory where c>1c>1. In this sense the situation is somewhat similar to that observed for “standard” dynamical triangulations (DT) which provide a regularization of 2d quantum Liouville gravity. However, the geometric phase observed for c>1c>1 in CDT is very different from the corresponding phase observed for DT.
Journal: Physics Letters B - Volume 743, 9 April 2015, Pages 435–439