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“a method to derive light-matter Hamiltonians in truncated Hilbert spaces, which can produce gauge-invariant physical results even in extreme light-matter interaction regimes”

Study sheds light on gauge invariance in ultrastrong-coupling cavity quantum electrodynamics
https://jhavelikes.tumblr.com/post/185692540360

“This premature thawing is another clear signal that we must decarbonise our economies, and immediately.”

Scientists shocked by Arctic permafrost thawing 70 years sooner than predicted | Environment | The Guardian
https://jhavelikes.tumblr.com/post/185688767470

“A major challenge to the implementation of artificial photosynthesis (AP), in which fuels are produced from abundant materials (water and carbon dioxide) in an electrochemical cell through the action of sunlight, is the discovery of active, inexpensive, safe, and stable catalysts for the oxygen evolution reaction (OER). Multimetallic molecular catalysts, inspired by the natural photosynthetic enzyme, can provide important guidance for catalyst design, but the necessary mechanistic understanding has been elusive. In particular, fundamental transformations for reactive intermediates are difficult to observe, and well-defined molecular models of such species are highly prone to decomposition by intermolecular aggregation.”

Stabilization of reactive Co4O4 cubane oxygen-evolution catalysts within porous frameworks | PNAS
https://jhavelikes.tumblr.com/post/185677777345

“The first case of neural networks was in 1943, when neurophysiologist Warren McCulloch and mathematician Walter Pitts wrote a paper about neurons, and how they work. They decided to create a model of this using an electrical circuit, and therefore the neural network was born.”

History of Machine Learning
https://jhavelikes.tumblr.com/post/185659438435

“legislation was introduced that would have made the use of phrases such as “Polish death camps” punishable by up to three years in prison”

Summit cancelled as Israel and Poland row over Holocaust | World news | The Guardian
https://jhavelikes.tumblr.com/post/185642464235