12 citations · 17 across the 3 of their papers we have counts for
3 papers
hep-th2004★ 12 cited
Background Independent Quantum Field Theory and the Cosmological Constant Problem
Olaf Dreyer
We introduce the notion of background independent quantum field theory. The distinguishing feature of this theory is that the dynamics can be formulated without recourse to a backg…
gr-qc2004
Relational Physics and Quantum Space
Olaf Dreyer
In a purely relational theory there exists a tension between the relational character of the theory and the existence of quantities like distance and duration. We review this issue…
gr-qc2002★ 5 cited
Isolated Horizons in 2+1 Gravity
Abhay Ashtekar, Olaf Dreyer, Jacek Wisniewski
Using ideas employed in higher dimensional gravity, non-expanding, weakly isolated and isolated horizons are introduced and analyzed in 2+1 dimensions. While the basic definitions…