期刊
CLASSICAL AND QUANTUM GRAVITY
卷 31, 期 16, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0264-9381/31/16/165003
关键词
quantum gravity; lattice field theory; renormalization group flow
类别
资金
- ERC 'Exploring the Quantum Universe' (EQU) [291092]
- FNU
- Free Danish Research Council, through the grant 'Quantum Gravity and the Role of Black Holes'
- National Science Centre Poland [2012/06/A/ST2/00389]
- Netherlands Organisation for Scientific Research (NWO)
- NWO
- Perimeter Institute of Theoretical Physics
- Government of Canada through Industry Canada
- Province of Ontario through the Ministry of Economic Development Innovation
We perform a first investigation of the coupling constant flow of the non-perturbative lattice model of four-dimensional quantum gravity given in terms of causal dynamical triangulations (CDT). After explaining how standard concepts of lattice field theory can be adapted to the case of this background-independent theory, we define a notion of 'lines of constant physics' in coupling constant space in terms of certain semiclassical properties of the dynamically generated quantum universe. Determining flow lines with the help of Monte Carlo simulations, we find that the second-order phase transition line present in this theory can be interpreted as a UV phase transition line if we allow for an anisotropic scaling of space and time.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据