Quantum cosmology
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In theoretical physics, quantum cosmology is a young field attempting to study the effect of quantum mechanics on the earliest moments of the universe after the Big Bang. Despite many attempts, the field remains a rather speculative branch of quantum gravity. The big bang/big crunch is replaced by a quantum bounce thus removing singularities.
An important problem in this field is the origin of information in the universe.
[edit] See also
- Here's a layman's explanation of Quantum Cosmology posted on the Cambridge website: http://www.damtp.cam.ac.uk/user/gr/public/qg_qc.html