Dr. Ana Alonso-Serrano is a long-term vistor at @mpi_grav Potsdam. She works on the quantum behaviour of spacetime close to the classical singularities and phenomenology of quantum gravity.
[dying to know what the consensus ended up being on this radical theory (pub 23 Jul 2018). guess I'l do some hunting; tips appreciated]
trio of #ColumbiaUni physicists is making waves with a new theory about #phonons—they suggest they might have negative mass, and because of that, have negative gravity. Angelo Esposito, Rafael Krichevsky and Alberto Nicolis have written a paper to support their theory, including the math, and uploaded it to the xrXiv preprint server.
https://www.nature.com/articles/s42254-023-00630-y
Analogue simulations of quantum gravity with fluids
22 August 2023
Braunstein, Faizal, Krauss, Marino & Shah: the potential use of analogue hydrodynamic systems beyond classical general relativity towards the exploration of quantum gravitational effects…We aim at bridging the gap between the non-overlapping communities of experimentalists working with classical and #quantumfluids and #quantumgravity theorists
Ethan Siegel just wrote an excellent blog about our new paper on Hawking radiation, giving a detailed explanation, why the event horizon is not necessary (and as usual he actually understands and explains some of these things better than I do!). Have a look - it saves me a long thread … https://bigthink.com/starts-with-a-bang/hawking-radiation-black-holes/
Nominations sought for the position of director at the @mpi_grav in Potsdam in one of the following areas: quantum gravity, theoretical cosmology in the era of big data, early universe astrophysics & cosmology.