reincarnation is reality

"Physicists at the University of Ottawa and the Max Planck Institute for the Science of Light produced polarization-entangled photon pairs using nothing but outdoor sunlight as the pump source — and confirmed genuine quantum behavior by clearing Bell's inequality test by 2.49 standard deviations, in a study published in Optica on August 6. The result overturns a foundational assumption of quantum optics: that the orderly, synchronized light of a laser is a prerequisite for generating quantum entanglement.

It is not. Sunlight — spatially diffuse, spectrally broad, and temporally chaotic — turns out to be sufficient, provided the right degree of freedom is targeted.

The dominant technique for producing entangled photon pairs is spontaneous parametric down-conversion, or SPDC: a pump photon enters a nonlinear crystal and spontaneously splits into two lower-energy daughter photons that can emerge in an entangled state. Under the right conditions, measuring one daughter photon instantly constrains what you will find when you measure the other, regardless of how far apart they are. That is the non-local correlation quantum mechanics predicts — and that a Bell test confirms cannot be explained by any classical model."

"The key insight — developed theoretically by the Boyd group at Ottawa and demonstrated experimentally with LED pumps in 2023 — is that this degree-of-freedom orthogonality principle holds firm. Spatial and temporal incoherence cannot degrade entanglement in polarization if the pump is highly polarized and the target entanglement is in polarization. The two quantities simply do not talk to each other. Once that distinction was established, the question became mechanical: could sunlight be concentrated and polarized well enough to pump SPDC at a useful rate?

The answer, demonstrated across three outdoor experimental days on the campus of the Max Planck Institute in Erlangen, Germany, is yes."

(Mouse one-cell embryo showing two pronuclei: the human version is similar, and their busy preparation for future development remains a mystery. Credit: Perry Lab, University of Bath)"

"The newly discovered activity begins at the one-cell stage—far sooner than previously thought—promising to change the way we think about our developmental origins.

The research, published today in Cell Stem Cell, was co-led by Professor Tony Perry at the University of Bath, Dr. Giles Yeo at the University of Cambridge and Dr. Matthew VerMilyea at Ovation Fertility, US."

"Researchers from the U.S. National Science Foundation National Solar Observatory (NSF NSO), the Max Planck Institute for Solar System Research (MPS) in Germany, and the High Altitude Observatory (HAO) in the U.S. have made a discovery in solar physics. New images of the sun's surface taken with the world's largest solar telescope, the NSF Daniel K. Inouye Solar Telescope, built and operated by the NSO in Hawaii, along with sophisticated computer simulations, reveal tiny plasma vortices that had never before been visible."

"The vortices occur at the edges of so-called granules, which densely cover the sun's visible surface. They measure between 500 and 2,000 kilometers (310 to 1,240 miles) in diameter. Taken together, they form the sun's granulation: a pattern reminiscent of bubbles in a boiling liquid.

In fact, the granulation stems from plasma flows that rise from the sun's hot interior, cool down and sink back into the depths. In the new study published in Nature, researchers succeeded for the first time in visualizing fringed structures at the edges of the granules. Time and again, these structures display swirling motions resembling breaking ocean waves. Some of these "fringes" are little more than 20 kilometers (12 miles) wide.

The researchers interpret the swirling plasma flows as signs of Kelvin–Helmholtz instabilities. This is a well-known effect in fluid dynamics. It occurs when two fluids flow past each other at different speeds. This generates shear forces at the interface, causing minute disturbances to grow into wave- or vortex-like flows. The effect manifests itself in a wide variety of contexts and on different scales—for example, on the surfaces of lakes or in ocean waves, in cloud formation, in the atmospheres of the giant gas planets Jupiter and Saturn, and in the interaction of the solar wind with planetary magnetospheres.

Apparently, adjacent plasma layers at the edges of solar granules also flow at different speeds, creating the necessary conditions for Kelvin–Helmholtz instabilities."