Physics - New Developments
Previous topics from "New Developments"
Second attempt to drill deep for Antarctic climate clues
Researchers are departing on 1128 km journey over ice to the edge of the West Antarctic Ice Sheet, in search of critical geological records. The vast West Antarctic Ice Sheet holds enough ice to raise sea level by 4 to 5 metres if it melts completely - Diana Cano Bordajandi, 11 November 2024 - Imperial College London -
A new general expression for the Fine Structure Constant is derived using the current fundamentals of physics, however viewed from a new perspective based on de Broglie's theory of matter waves from 1924 - Alan Clark, Germany - March 20, 2024 - ReseachGate - Keywords: fine structure, constant, formula, derive, derivation, determination, atom, hydrogen, sommerfeld
One In, Three Out for Microwave Photons
The demonstration of a device that can triple the number of photons in a microwave signal is a key step toward making a single-microwave-photon detector - Luke Govia, San Jose, CA, US - March 4, 2024 Physics 17, 35
Einstein–Podolsky–Rosen paradox gets a 1000-atom test
Since 1935, EPR’s paradoxical thought experiment has been performed numerous times with small, few-body quantum systems. However, the question of whether the non-classical character of quantum mechanics can be observed in larger systems had remained open until recently, when researchers from the University of Basel, Switzerland performed an EPR experiment for the first time in many-body quantum systems. Their results, which they describe in Physical Review X, confirm that quantum spookiness survives even when the number of quantum particles exceeds 1000 - Unnati Akhouri - PhD student contributor to Physics World - 18 Jul 2023
Researchers have achieved long-distance entanglement between two calcium ions, each of which lies in a different building, showing that trapped ions could be used to create quantum networks - Marric Stephens - February 2, 2023 APS News, Physics 16, s20
Neutrino Astronomy Enters a New Era
Using the IceCube Neutrino Observatory in Antarctica, researchers have found significant evidence of a cosmic source of high-energy neutrinos - Katherine Wright - November 3, 2022 - APS News, Physics 15, 171
Double-slit experiment without slits
A telltale interference pattern confirms that a coherent super-position of molecular orientations creates two indistinguishable scattering pathways (H. Zhou et al., Science 374, 960, 2021) - Heather M. Hill - Physics Today - December 2021
Pinpointing the Roots of Extreme Weather Events
A statistical method for fingerprinting the patterns of heat waves and cold spells could reveal whether climate change caused an extreme weather event - Katherine Wright - APS Physics - July 2021
‘Whitest White’ Paint Beats the Heat
A new nanomaterial mixture lets surfaces release more heat than they absorb - Scientific American - May 2021
Jorge Cham, aka, PHD Comics, illustrates the excitement over the muon anomaly results in a set of cartoons he made for Physics - APS Physics - April 2021
2D Metal Compound Shows a Superconducting Surprise
A cesium-rich “kagome” metal is both a topological insulator and a superconductor, making it a compelling material for future quantum technologies - Rachel Berkowitz - APS Physics - December 2020
Dark matter even more elusive than previously thought One of the best candidates for finding dark matter – dwarf galaxies – appear to be sending weaker signals than previously thought - Hayley Dunning - Imperial College London - September 2020
New Particle Accelerator Fits on a Silicon Chip The device uses lasers to accelerate electrons along an etched channel - Sophie Bushwick - Scientific American - January 2020
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