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I am aware that that the most researched approach is that of string theory. I have also heard about quantum loop gravity. What other approaches are there to unify gravity and QFT? Also, please include a brief description of that approach, and how it is different from the others.

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closed as not constructive by David Z Dec 18 '12 at 9:39

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance.If this question can be reworded to fit the rules in the help center, please edit the question.

This is a textbook example of the kinds of list questions that aren't appropriate for SE sites. But it could perhaps be reworked into an appropriate question without too drastic changes. – David Z Dec 18 '12 at 9:41
Possible duplicates: and links therein. – Qmechanic Dec 18 '12 at 10:33

This sounds like an essay question :-)

There are lots and lots of suggestions for quantum gravity, few of which have convinced many. I would start with the list in the Wkikipedia article on quantum gravity and follow the links from there.

My own favourite amongst the also-rans is Causal Dynamical Triangulation because it seems an interesting idea, though I think its chance of success is low.

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