21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-04-23 04:17:35

Uncategorized
FINDING. “In this Letter, we have shown that the BBHs observed by LIGO/Virgo strongly disfavour the existence of scalar ultralight bosons with masses in the range 1.3 × 10(−13) eV ≤ μs ≤ 2.7 × 10(−13) eV. The statistical evidence is entirely contributed by the two highly spinning primaries in the systems GW190412 and GW190517.” (BBH = binary black holes). https://lnkd.in/gnQbwGA View in LinkedIn
Read More
21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-04-23 04:16:22

Uncategorized
THE BOTTLENECK. “Another important factor to assess if black holes will be spun down by boson clouds is the time interval between the formation of the black hole and the merger: if a black hole merges too quickly after being born it might not have the time to undergo superradiance, even if bosons of the appropriate mass exist.” https://lnkd.in/gnQbwGA View in LinkedIn
Read More
21Sep 2022 by Nigel Fleming No Comments
linkedin post 2021-04-24 05:13:10

linkedin post 2021-04-24 05:13:10

Uncategorized
SUBLINEAR SCALING. “It means a city with a large population needs only ~80% as many roads, power lines, and gas stations per person as a city half its size. The second, “superlinear scaling,” applies to outputs of socioeconomic activity. It means a large city produces ~120% more wealth, patents, crime, pollution, and disease per person than a city half its size.” https://www.santafe.edu/news-center/news/researchers-reveal-cloud-geometry-behind-city-scaling View in LinkedIn
Read More
21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-04-23 04:13:45

Uncategorized
HUNTING THE ULTRALIGHT SNARK. “In this Letter we repeat the analysis of Ref. [64] by including the 35 new binary black holes reported by the LIGO-Virgo-Kagra collaboration at high significance. We find the probability a scalar boson with masses in the range 1.3×10(−13) eV ≤ μs ≤ 2.7×10(−13) eV to be smaller than 0.01%.” https://lnkd.in/gnQbwGA View in LinkedIn
Read More
21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-04-24 05:07:01

Uncategorized
ALSO BY PROFESSOR LUISI. “Mind and Life: Discussions with the Dalai Lama on the Nature of Reality (Columbia Series in Science and Religion, 2010), by Pier Luisi (Author), Zara Houshmand. A keen study of character, Luisi incorporates his own amusing observations into this fascinating dialogue, painting a very human portrait of some of our greatest and most intimidating thinkers.” https://lnkd.in/dnVKMMK View in LinkedIn
Read More