- #1

tom.stoer

Science Advisor

- 5,766

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## Main Question or Discussion Point

From time to time I try to get an overview regarding the current status of LQG. Unfortunately there seem to be a lot of interesting ideas and new proposals, but I am missing a summary paper which addresses and summarizes both main achievements and main open issues.

What about status of discretization, SF vertex and measure, consistent implementations of constraints including (second class) simplicity constraints, Holst vs. Nie-Yan action, Immirzi parameter, different gauges and different spin networks, Hamiltonian constraint, relation between canonical and spin foam models, finiteness and renormalization, quantization based on "dust reference frames", semiclassical limit, ...

Is there a recent review paper addressing these topics?

What about status of discretization, SF vertex and measure, consistent implementations of constraints including (second class) simplicity constraints, Holst vs. Nie-Yan action, Immirzi parameter, different gauges and different spin networks, Hamiltonian constraint, relation between canonical and spin foam models, finiteness and renormalization, quantization based on "dust reference frames", semiclassical limit, ...

Is there a recent review paper addressing these topics?