physicists demonstrate new method to make single photons

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3D printers have 'fingerprints,' a discovery that could help trace 3D-printed guns

SCIENCE DAILY Like fingerprints, no 3D printer is exactly the same. That's the takeaway from a new study that describes what's believed to be the first... Like fingerprints, no 3D printer is exactly the same. That's the takeaway from a new study that describes what's believed to be the first accurate method for tracing a 3D-printed object to the machine it came from. The advancement could... 1 hour

Strongly interacting dipolar-polaritons

Science Magazine Exciton-polaritons are mutually interacting quantum hybridizations of confined photons and electronic excitations. Here, we demonstrate a system of optically guided, electrically polarized exciton-polaritons ("dipolaritons") that displays up to 200-fold enhancement of the polariton-polariton interaction strength compared to unpolarized polaritons. The... Exciton-polaritons are mutually interacting quantum hybridizations of confined photons and electronic excitations. Here, we demonstrate a system of optically guided, electrically polarized exciton-polaritons ("dipolaritons") that displays up to 200-fold enhancement of the polariton-polariton interaction strength compared to unpolarized polaritons. The... 2 hours

Ultrafast manipulation of mirror domain walls in a charge density wave

Science Magazine Domain walls (DWs) are singularities in an ordered medium that often host exotic phenomena such as charge ordering, insulator-metal transition, or superconductivity. The ability to locally... Domain walls (DWs) are singularities in an ordered medium that often host exotic phenomena such as charge ordering, insulator-metal transition, or superconductivity. The ability to locally write and erase DWs is highly desirable, as it allows one to design material... 2 hours

A three-dimensional photonic topological insulator using a two-dimensional ring resonator lattice with a synthetic frequency dimension

Science Magazine In the development of topological photonics, achieving three-dimensional topological insulators is of notable interest since it... In the development of topological photonics, achieving three-dimensional topological insulators is of notable interest since it enables the exploration of new topological physics with photons and promises novel photonic devices that are robust against disorders in three dimensions. Previous theoretical... 2 hours

Nanocages in the lab and in the computer: How DNA-based dendrimers transport nanoparticles

SCIENCE DAILY How to create nanocages, i.e., robust and stable objects with regular voids and tunable properties? Short segments of DNA molecules are perfect... How to create nanocages, i.e., robust and stable objects with regular voids and tunable properties? Short segments of DNA molecules are perfect candidates for the controllable design of novel complex structures. Physicists investigated methodologies to synthesize DNA-based dendrimers in the... 2 hours

Deterministic quantum teleportation through fiber channels

Science Magazine Quantum teleportation, which is the transfer of an unknown quantum state from one station to another over a certain distance with the help of nonlocal entanglement shared by a sender and a receiver, has been widely... Quantum teleportation, which is the transfer of an unknown quantum state from one station to another over a certain distance with the help of nonlocal entanglement shared by a sender and a receiver, has been widely used as a fundamental... 2 hours

Study points to new method to deliver drugs to the brain

SCIENCE DAILY Researchers have discovered a potentially new approach to deliver therapeutics more effectively to the brain. The research could have implications for the treatment of a wide... Researchers have discovered a potentially new approach to deliver therapeutics more effectively to the brain. The research could have implications for the treatment of a wide range of diseases, including Alzheimer's, Parkinson's, ALS, and brain cancer. 2 hours

Scientists grow functioning human neural networks in 3D from stem cells

SCIENCE DAILY A team of researchers has developed three-dimensional (3D) human tissue culture models for the central nervous system that mimic structural and functional features of the brain... A team of researchers has developed three-dimensional (3D) human tissue culture models for the central nervous system that mimic structural and functional features of the brain and demonstrate neural activity sustained over a period of many months. With the ability... 2 hours

Earth’s inner core is solid, 'J waves' suggest

SCIENCE DAILY A new study could help us understand how our planet was formed. Scientists report that their research shows that Earth's inner core is solid -- a finding made possible by a new... A new study could help us understand how our planet was formed. Scientists report that their research shows that Earth's inner core is solid -- a finding made possible by a new method for detecting shear waves, or 'J waves'... 2 hours

Ultraviolet Superflares May Threaten Exoplanet Habitability near Young Red Dwarfs

SCI-NEWS.COM Stellar superflares from young red dwarfs may make conditions uninhabitable on fledgling planets, according to the... Stellar superflares from young red dwarfs may make conditions uninhabitable on fledgling planets, according to the new results of the Habitable Zones and M dwarf Activity across Time (HAZMAT) survey. About 70% of the stars in our Milky Way Galaxy... 2 hours

Pushing the (extra cold) frontiers of superconducting science

SCIENCE DAILY Scientists have developed a method to measure magnetic properties of superconducting and magnetic materials that exhibit unusual quantum behavior at very low temperatures in high magnetic fields. Scientists have developed a method to measure magnetic properties of superconducting and magnetic materials that exhibit unusual quantum behavior at very low temperatures in high magnetic fields. 3 hours

Winamp returns from the grave with Windows 10 support

Windows Central It's time to party like it's 2003 Nostalgia is a powerful drug. And for music aficionados, nothing may be more nostalgic than Winamp, the venerable music (and video) player that... It's time to party like it's 2003 Nostalgia is a powerful drug. And for music aficionados, nothing may be more nostalgic than Winamp, the venerable music (and video) player that dominated the scene prior to the rise of streaming services... 3 hours

Producing defectless metal crystals of unprecedented size

SCIENCE DAILY Researchers have developed a new method to convert inexpensive polycrystalline metal foils to single crystals with superior properties. It is expected that these materials will find many uses in science and technology. Researchers have developed a new method to convert inexpensive polycrystalline metal foils to single crystals with superior properties. It is expected that these materials will find many uses in science and technology. 4 hours

Mpowerd's $26 Luci Pro Lux is a solar inflatable light that charges phones

Windows Central One day only. Today only, Amazon has the Mpowerd Luci Pro Lux on sale for $26.21 right now. Today marks its first... One day only. Today only, Amazon has the Mpowerd Luci Pro Lux on sale for $26.21 right now. Today marks its first and steepest price drop ever on Amazon. Normally it costs $35, but we'd like to argue that this... 4 hours

Here's How Researchers Made Mice with 2 Dads

LIVE SCIENCE Mice with two dads are harder to make than mice with two moms. Mice with two dads are harder to make than mice with two moms. 4 hours

Researchers suggest new model for measuring growth in students' proficiency in MOOCs

PHYS.ORG Researchers from the Higher School of Economics and KU Leuven have developed a method of measuring growth in students' proficiency in digital learning environments.... Researchers from the Higher School of Economics and KU Leuven have developed a method of measuring growth in students' proficiency in digital learning environments. It helps to see the progress of online course participants in dynamics, i.e., to understand how... 5 hours

If you want the best gaming laptop, you want a Razer Blade

Windows Central We're a virtual company made up of tech experts from across the globe. We live and breathe Windows laptops, and use and review plenty... We're a virtual company made up of tech experts from across the globe. We live and breathe Windows laptops, and use and review plenty — including those focused on gaming — to find the best picks for you. The Razer... 5 hours

Microsoft launches Spend iOS app that automatically tracks and matches expenses

9to5Mac Microsoft is out with a new iOS app that looks to automate keeping tabs... Microsoft is out with a new iOS app that looks to automate keeping tabs on business expenses. Coming from the same team behind the mileage tracking app, MileIQ, Spend is designed to make expense and receipt tracking easier than ever.... 5 hours

Deals: Carriers Kick Off iPhone XR Promos, Anker and Choetech Launch New Charging Sales, and More

MacRumors Today is iPhone XR... Today is iPhone XR pre-order day, and like with previous iPhone models you are able to pre-order the XR from all of the major cellular carriers, most of which are offering promotions. If you haven't pre-ordered your iPhone XR yet,... 6 hours

Modified optical centrifuge has potential to open up new ways for the study of superrotors

PHYS.ORG Using corkscrew-shaped laser pulses, scientists at DESY have devised a sophisticated optical centrifuge that can make molecules rotate... Using corkscrew-shaped laser pulses, scientists at DESY have devised a sophisticated optical centrifuge that can make molecules rotate rapidly about a desired molecular axis. The innovative method opens up new ways to control and study super fast spinning molecules, called... 7 hours

Scientists report technique to prolong lifespan of perovskite solar cells

PHYS.ORG A group of chemists at Kaunas University of Technology (KTU), Lithuania, together with the physicists from Vilnius University and the Swiss Federal Institute of Technology, Lausanne (EPFL), have... A group of chemists at Kaunas University of Technology (KTU), Lithuania, together with the physicists from Vilnius University and the Swiss Federal Institute of Technology, Lausanne (EPFL), have uncovered one of the possible reasons behind the short lifespan of perovskite... 7 hours

New simulations confirm efficiency of waste-removal process in plasma device

PHYS.ORG Just as fire produces ash, the combining of light elements in fusion reactions can produce material that eventually interferes with those same reactions. Now, scientists at the U.S.... Just as fire produces ash, the combining of light elements in fusion reactions can produce material that eventually interferes with those same reactions. Now, scientists at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) have found evidence... 7 hours

How to Scan Documents With Your iPhone in Three Quick Steps

MacRumors The document scanning feature found in Apple's stock Notes app is a great way... The document scanning feature found in Apple's stock Notes app is a great way to digitize all sorts of print-based content, from letters and receipts to recipes and photos. If you often make a digital record of paper in this... 7 hours

Producing defectless metal crystals of unprecedented size

PHYS.ORG A research group at the Center for Multidimensional Carbon Materials, within the Institute for Basic Science (IBS), has published an article in Science describing a new method to convert inexpensive polycrystalline metal foils to... A research group at the Center for Multidimensional Carbon Materials, within the Institute for Basic Science (IBS), has published an article in Science describing a new method to convert inexpensive polycrystalline metal foils to single crystals with superior properties. These... 8 hours

Chemists develop method to obtain catalyst-, surfactant- and template-free polymeric nanoparticles

PHYS.ORG A chemist from RUDN proposes a simple technology for producing polymeric nanoparticles from only two organic substances. By changing the temperature of the reaction and the... A chemist from RUDN proposes a simple technology for producing polymeric nanoparticles from only two organic substances. By changing the temperature of the reaction and the ratio of initial substances, the scientists can obtain particles of any given size. The... 8 hours