Speed of sound from fundamental physical constants — mentioned by srl

Sun, 11 Oct 2020 04:33:28 GMT

Here's the arxiv link, for those who want to read the original article paywall-free: https://arxiv.org/abs/2004.04818. To be clear, this isn't an unconditional speed limit. It appears to be something like "the maximum speed of sound in matter which consists of atoms" (maybe I've missed a few conditions). In particular, this speed limit is known to be violated inside of neutron stars (where the speed of sound is near 1/sqrt(3) times the speed of light, and may even exceed that). The paper also mentions a proposed lower bound on viscosity. This is the KSS bound…

Paper and discussion history. A mention is not an endorsement.

Speed of sound from fundamental physical constants · HackerPapers discussions

Speed of sound from fundamental physical constants — mentioned by srl