Rajesh Kommu and Professor Steve Carlip are working on interesting ways to model quantum gravity using computational methods. Rajesh has been kind enough to help show me where to get started:
Dynamically Triangulating Lorentzian Quantum Gravity
A non-perturbative Lorentzian path integral for gravity
Non-perturbative 3d Lorentzian Quantum Gravity
more ...The papers to read to get started:
A discrete history of the Lorentzian path
integral
Reconstructing the Universe
Then the usual:
Dynamically Triangulating Lorentzian Quantum
Gravity
Emergence of a 4D World from Causal Quantum Gravity
Semiclassical Universe from First
Principles
Spectral dimension of the Universe
(Thanks to this post from ...
more ...Today I came across one of Dr. Nick Bostrom’s existential philosophy papers regarding life vs. sim-life (aka are we living in the Matrix?).
To me, the really interesting question is the assumption of substrate-independence (because I don’t believe we’re living in a simulation, more on that in ...
more ...Went to an interesting seminar today about detecting traces of the reheat portion of the Hot Big Bang (the part that occurs after inflation), papers not yet out on arxiv (links posted here when they come out).
The interesting bits to relay back here are:
Any symmetry breaking (Higgs, for ...