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Categories: Archaeology: General, Physics: Quantum Physics
Published Laser light hybrids control giant currents at ultrafast times



The flow of matter, from macroscopic water currents to the microscopic flow of electric charge, underpins much of the infrastructure of modern times. In the search for breakthroughs in energy efficiency, data storage capacity, and processing speed, scientists search for ways in which to control the flow of quantum aspects of matter such as the 'spin' of an electron -- its magnetic moment -- or its 'valley state', a novel quantum aspect of matter found in many two dimensional materials. A team of researchers has recently discovered a route to induce and control the flow of spin and valley currents at ultrafast times with specially designed laser pulses, offering a new perspective on the ongoing search for the next generation of information technologies.
Published Dairy foods helped ancient Tibetans thrive in one of Earth's most inhospitable environments



The question of how prehistoric populations obtained sustainable food in the barren heights of the Tibetan Plateau has long attracted academic and popular interest. A new study highlights the critical role of dairy pastoralism in opening the plateau up to widespread, long-term human habitation.
Published Backscattering protection in integrated photonics is impossible with existing technologies



Researchers raise fundamental questions about the proposed value of topological protection against backscattering in integrated photonics.
Published Study re-evaluates hazards and climate impacts of massive underwater volcanic eruptions



Material left on the seafloor by bronze-age underwater volcanic eruptions is helping researchers better understand the size, hazards and climate impact of their parent eruptions, according to new research.
Published Better understanding the physics of our universe



Researchers from around the world have sought to answer important questions about the most basic laws of physics that govern our universe. Their experiment, the Majorana Demonstrator, has helped to push the horizons on research concerning one of the fundamental building blocks of the universe: neutrinos.
Published How to see the invisible: Using the dark matter distribution to test our cosmological model



Astrophysicists have measured a value for the 'clumpiness' of the universe's dark matter (known to cosmologists as 'S8') of 0.776, which does not align with the value derived from the Cosmic Microwave Background, which dates back to the universe's origins. This has intriguing implications for the standard cosmological model.
Published Random matrix theory approaches the mystery of the neutrino mass



Scientists analyzed each element of the neutrino mass matrix belonging to leptons and showed theoretically that the intergenerational mixing of lepton flavors is large. Furthermore, by using the mathematics of random matrix theory, the research team was able to demonstrate, as much as is possible at this stage, why the calculation of the squared difference of the neutrino masses are in close agreement with the experimental results in the case of the seesaw model with the random Dirac and Majorana matrices. The results of this research are expected to contribute to the further development of particle theory research, which largely remains a mystery.
Published DMI allows magnon-magnon coupling in hybrid perovskites



An international group of researchers has created a mixed magnon state in an organic hybrid perovskite material by utilizing the Dzyaloshinskii--Moriya-Interaction (DMI). The resulting material has potential for processing and storing quantum computing information.
Published Absolute zero in the quantum computer



Absolute zero cannot be reached -- unless you have an infinite amount of energy or an infinite amount of time. Scientists in Vienna (Austria) studying the connection between thermodynamics and quantum physics have now found out that there is a third option: Infinite complexity. It turns out that reaching absolute zero is in a way equivalent to perfectly erasing information in a quantum computer, for which an infinetly complex quantum computer would be required.
Published Yak milk consumption among Mongol Empire elites


For the first time, researchers have pinpointed a date when elite Mongol Empire people were drinking yak milk, according to a new study.
Published Researchers use 21st century methods to record 2,000 years of ancient graffiti in Egypt


Researchers are learning more about ancient graffiti -- and their intriguing comparisons to modern graffiti -- as they produce a state-of-the-art 3D recording of the Temple of Isis in Philae, Egypt.
Published Ancient DNA reveals Asian ancestry introduced to East Africa in early modern times


The largest-yet analysis of ancient DNA in Africa, which includes the first ancient DNA recovered from members of the medieval Swahili civilization, has now broken the stalemate about the extent to which people from outside Africa contributed to Swahili culture and ancestry.
Published Charming experiment finds gluon mass in the proton



Nuclear physicists may have finally pinpointed where in the proton a large fraction of its mass resides. A recent experiment has revealed the radius of the proton's mass that is generated by the strong force as it glues together the proton's building block quarks.
Published Ancient giant amphibians swam like crocodiles 250 million years ago


Ancient 2m-long amphibians swam like crocodiles long before true crocodiles existed, according to a new study.
Published Ancient African empires' impact on migration revealed by genetics


Traces of ancient empires that stretched across Africa remain in the DNA of people living on the continent, reveals a new genetics study.
Published Can a solid be a superfluid? Engineering a novel supersolid state from layered 2D materials



Physicists predict that layered electronic 2D semiconductors can host a curious quantum phase of matter called the supersolid. This counterintuitive quantum material simultaneously forms a rigid crystal, and yet at the same time allows particles to flow without friction, with all the particles belong to the same single quantum state.
Published Highly charged ions melt nano gold nuggets



Shooting ions is very different from shooting a gun: By firing highly charged ions onto tiny gold structures, these structures can be modified in technologically interesting ways. Surprisingly, the key is not the force of impact, but the electric charge of the projectiles.
Published Nanophysics: The right twist


Stacked layers of ultrathin semiconductor materials feature phenomena that can be exploited for novel applications. Physicists have studied effects that emerge by giving two layers a slight twist.
Published New type of entanglement lets scientists 'see' inside nuclei


Nuclear physicists have found a new way to see inside nuclei by tracking interactions between particles of light and gluons. The method relies on harnessing a new type of quantum interference between two dissimilar particles. Tracking how these entangled particles emerge from the interactions lets scientists map out the arrangement of gluons. This approach is unusual for making use of entanglement between dissimilar particles -- something rare in quantum studies.
Published Giant volcanic 'chain' spills secrets on inner workings of volcanoes


Volcanic relics scattered throughout the Australian landscape are a map of the northward movement of the continent over a 'hotspot' inside the Earth, during the last 35 million years.