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Low energy limit in Loop Quantum Gravity
http://hdl.handle.net/2307/585
<Title>Low energy limit in Loop Quantum Gravity</Title>
<Authors>Magliaro, Elena</Authors>
<Issue Date>2009-01-12</Issue Date>
<Abstract>In this doctoral thesis I developed techniques for the study of the low energy limit in Loop Quantum Gravity.
Loop Quantum Gravity is a strong candidate theory for the non-perturbative quantization of the gravitational
field. Though is unlikely that an experimental verification could be feasible in the next future, one can at least
try to recover the correct semiclassical limit of the theory. First of all, the leading order of the 2-point function
computed in LQG should reproduce the Newtonian potential in the large distance regime; more in general, the
n-point functions of LQG should match with the n-point functions computed in conventional quantum field theory
of gravitons. An origianal contribution to the calculation of the graviton propagator in LQG is presented. A second
approach to the semiclassical limit is introduced for the first time in this thesis, and it is based on the coherent
propagation of semiclassical wavepackets. Both approaches to the analysis of the dynamical sector of LQG are
covered extensively.</Abstract>Sun, 11 Jan 2009 23:00:00 GMThttp://hdl.handle.net/2307/5852009-01-11T23:00:00Z