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COLLAPSE OF RELATIVITY. “The problem was motivated by a question about the limits of classical general relativity: For how long a time does classical GR hold during the evolution of a black hole?” (GR = general relativity). https://lnkd.in/dByfCJV View in LinkedIn

BEYOND TS ELIOT. “Conjecture: The complexity of certain quantum circuits grows linearly with the number of time-steps, until it reaches its maximum value, exponential in the number of qubits.” https://lnkd.in/dByfCJV View in LinkedIn

ETERNAL FUTURE. “According to classical general relativity the volume of space behind the horizon of a black hole grows linearly (with time), into the eternal future.” (Time present and time past/Are both perhaps present in time future,/And time future contained in time past./If all time is eternally present/All time is unredeemable.” TSE Four Quartets). https://lnkd.in/dByfCJV View in LinkedIn

PUSHING THE ANALOGY. “Thus, θ(τ) < 0 for every τ may be proposed as the signal of jamming in this analogue gravity formulation of granular matter.” https://lnkd.in/dusKMKM View in LinkedIn

FRAGMENT FROM NATURE continues and concludes this weekend on the wonderful article that leaps from jammed sand to black holes. It is rare to find such bold leaps and interesting connection of the dots. It is this spirit of raw enquiry which stimulates debate, opens vistas, and regardless of the eventual truth, contribute to the dialogue. Truth is slippery and gets overprinted with new data, but the process of enquiry is the Shackleton drive that opens new territory. View in LinkedIn

SPEAKING SPIDER. “We're beginning to perhaps be able to speak the language of a spider.Scientists at the Massachusetts Institute of Technology have turned spider webs into music -- creating an eerie soundtrack that could help them better understand how the arachnids spin their complex creations and even how they communicate.” https://lnkd.in/dzyYUP5 View in LinkedIn

EXOTIC BEASTS. “We will discuss extremal and near extremal black holes. Extremal magnetic black holes are more stable than their electric counterparts, since unit charge magnetic monopoles are much heavier than electrically charged particles, and are thus harder to pair create. In addition, an electrically charged black hole can be neutralized in conductive medium, while a magnetically charged one cannot be neutralized with ordinary matter.” https://lnkd.in/dX6Fbwx View in LinkedIn

“A MAGNETIC BLACK HOLE is a black hole with a magnetic charge. It is a solution of the Standard Model coupled to gravity. So it can be viewed a type of magnetic monopole that does not require any new physics.” https://lnkd.in/dX6Fbwx View in LinkedIn

THE EDGE OF MATHEMATICS. “We discuss some properties of magnetic black holes in the Standard Model. These are solutions of the laws of physics as we know them, though they do not seem easy to produce.” https://lnkd.in/dX6Fbwx View in LinkedIn