1.4k citations · 4k across the 57 of their papers we have counts for
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gr-qc2006★ 40 cited
Polymer state approximations of Schroedinger wave functions
Klaus Fredenhagen, Felix Reszewski
It is shown how states of a quantum mechanical particle in the Schroedinger representation can be approximated by states in the so-called polymer representation. The result may she…
hep-th2006★ 28 cited
Quantum Field Theory: Where We Are
Klaus Fredenhagen, Karl-Henning Rehren, Erhard Seiler
We comment on the present status, the concepts and their limitations, and the successes and open problems of the various approaches to a relativistic quantum theory of elementary p…
gr-qc2006★ 17 cited
Towards a Background Independent Formulation of Perturbative Quantum Gravity
Romeo Brunetti, Klaus Fredenhagen
The recent formulation of locally covariant quantum field theory may open the way towards a background independent perturbative formulation of Quantum Gravity.