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Categories: Archaeology: General, Physics: Quantum Physics

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Chemistry: Biochemistry Computer Science: Quantum Computers Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Laser light hybrids control giant currents at ultrafast times      (via sciencedaily.com)     Original source 

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.

Anthropology: General Archaeology: General Biology: Biochemistry Biology: Cell Biology Biology: General
Published

Dairy foods helped ancient Tibetans thrive in one of Earth's most inhospitable environments      (via sciencedaily.com)     Original source 

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.

Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Backscattering protection in integrated photonics is impossible with existing technologies      (via sciencedaily.com)     Original source 

Researchers raise fundamental questions about the proposed value of topological protection against backscattering in integrated photonics.

Archaeology: General Environmental: Water Geoscience: Earth Science Geoscience: Geology Geoscience: Oceanography Geoscience: Volcanoes Paleontology: Climate
Published

Study re-evaluates hazards and climate impacts of massive underwater volcanic eruptions      (via sciencedaily.com)     Original source 

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.

Physics: General Physics: Quantum Physics
Published

Better understanding the physics of our universe      (via sciencedaily.com)     Original source 

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.

Offbeat: General Offbeat: Space Physics: General Physics: Quantum Physics Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

How to see the invisible: Using the dark matter distribution to test our cosmological model      (via sciencedaily.com)     Original source 

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.

Mathematics: Modeling Physics: General Physics: Quantum Physics
Published

Random matrix theory approaches the mystery of the neutrino mass      (via sciencedaily.com)     Original source 

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.

Chemistry: General Chemistry: Organic Chemistry Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

DMI allows magnon-magnon coupling in hybrid perovskites      (via sciencedaily.com)     Original source 

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.

Chemistry: Thermodynamics Computer Science: General Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Absolute zero in the quantum computer      (via sciencedaily.com)     Original source 

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.

Anthropology: General Archaeology: General Offbeat: General Offbeat: Paleontology and Archeology
Published

Yak milk consumption among Mongol Empire elites      (via sciencedaily.com) 

For the first time, researchers have pinpointed a date when elite Mongol Empire people were drinking yak milk, according to a new study.

Anthropology: Cultures Anthropology: General Archaeology: General Offbeat: General Offbeat: Paleontology and Archeology
Published

Researchers use 21st century methods to record 2,000 years of ancient graffiti in Egypt      (via sciencedaily.com) 

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.

Anthropology: Cultures Anthropology: General Archaeology: General
Published

Ancient DNA reveals Asian ancestry introduced to East Africa in early modern times      (via sciencedaily.com) 

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.

Chemistry: Biochemistry Physics: General Physics: Quantum Physics
Published

Charming experiment finds gluon mass in the proton      (via sciencedaily.com)     Original source 

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.

Anthropology: General Archaeology: General
Published

Ancient African empires' impact on migration revealed by genetics      (via sciencedaily.com) 

Traces of ancient empires that stretched across Africa remain in the DNA of people living on the continent, reveals a new genetics study.

Chemistry: Biochemistry Chemistry: Inorganic Chemistry Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Can a solid be a superfluid? Engineering a novel supersolid state from layered 2D materials      (via sciencedaily.com)     Original source 

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.

Energy: Technology Engineering: Nanotechnology Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Highly charged ions melt nano gold nuggets      (via sciencedaily.com)     Original source 

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.

Chemistry: Biochemistry Chemistry: Inorganic Chemistry Engineering: Graphene Engineering: Nanotechnology Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Nanophysics: The right twist      (via sciencedaily.com) 

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.

Chemistry: Biochemistry Energy: Nuclear Offbeat: General Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

New type of entanglement lets scientists 'see' inside nuclei      (via sciencedaily.com) 

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.

Archaeology: General Geoscience: Earth Science Geoscience: Geology Geoscience: Volcanoes
Published

Giant volcanic 'chain' spills secrets on inner workings of volcanoes      (via sciencedaily.com) 

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.