On the space of generalized fluxes for loop quantum gravity

被引:13
作者
Dittrich, B. [1 ,2 ]
Guedes, C. [1 ]
Oriti, D. [1 ]
机构
[1] Max Planck Inst Gravitat Phys, D-14476 Golm, Germany
[2] Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada
关键词
GEOMETRY; MODEL;
D O I
10.1088/0264-9381/30/5/055008
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We show that the space of generalized fluxes-momentum space-for loop quantum gravity cannot be constructed by Fourier transforming the projective limit construction of the space of generalized connections-position space-due to the non-Abelianess of the gauge group SU(2). From the Abelianization of SU(2), U(1)(3), we learn that the space of generalized fluxes turns out to be an inductive limit, and we determine the consistency conditions the fluxes should satisfy under coarse graining of the underlying graphs. We comment on the applications to loop quantum cosmology (LQC), in particular, how the characterization of the Bohr compactification of the real line as a projective limit opens the way for a similar analysis for LQC.
引用
收藏
页数:24
相关论文
共 51 条
[41]   Renormalization of discrete models without background [J].
Oeckl, R .
NUCLEAR PHYSICS B, 2003, 657 (1-3) :107-138
[42]   Coherent states in quantum gravity: a construction based on the flux representation of loop quantum gravity [J].
Oriti, Daniele ;
Pereira, Roberto ;
Sindoni, Lorenzo .
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2012, 45 (24)
[43]   Coherent states for quantum gravity: toward collective variables [J].
Oriti, Daniele ;
Pereira, Roberto ;
Sindoni, Lorenzo .
CLASSICAL AND QUANTUM GRAVITY, 2012, 29 (13)
[44]   Quantum mechanics on SO(3) via noncommutative dual variables [J].
Oriti, Daniele ;
Raasakka, Matti .
PHYSICAL REVIEW D, 2011, 84 (02)
[45]  
Raasakka M, 2011, ARXIV11116481
[46]  
Rudin W., 1970, REAL COMPLEX ANAL
[47]  
Thiemann T., 2007, MODERN CANONICAL QUA
[48]   The graviton vacuum as a distributional state in kinematic loop quantum gravity [J].
Varadarajan, M .
CLASSICAL AND QUANTUM GRAVITY, 2005, 22 (07) :1207-1237
[49]   The quantum configuration space of loop quantum cosmology [J].
Velhinho, J. M. .
CLASSICAL AND QUANTUM GRAVITY, 2007, 24 (14) :3745-3758
[50]   On the structure of the space of generalized connections [J].
Velhinho, JM .
INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, 2004, 1 (04) :311-334