Acoustic plasmons found in hole-doped cuprate superconductors
The presence of acoustic plasmons in p-type (hole-doped) cuprate superconductors has now been confirmed by Dr. Ke-Jin Zhou and his team using high-resolution RIXS (Resonant Inelastic X-ray Scattering), at Diamond Light Source's I21 beamline. This dis.....»»
Researchers revolutionize understanding of supermassive black hole accretion radiation in quasars
Through the study of the optical to extreme ultraviolet radiation generated by the accretion of supermassive black holes at the centers of quasars, Associate Professor Cai Zhenyi and Professor Wang Junxian from the Department of Astronomy at the Univ.....»»
A graphene addition for enhancing the critical current density of Bi-2223 superconductors
Superconductors are materials that offer zero electric resistance to the flow of current on being cooled down below a certain critical temperature. Typically, superconductors have a very low critical temperature, close to absolute zero. However, a cl.....»»
Recent manipulations of excitons in moiré superlattices
Light can excite electron and hole pairs inside semiconducting materials. If the attraction between a negatively charged electron and a positively charged hole (the antiparticle of electron in solid state physics) is strong, they stay bound together,.....»»
The Mysterious ‘Warming Hole’ in the Middle of the US
The world is rapidly heating. So why has the central US been weirdly cool compared to the rest of the country?.....»»
Making a femtosecond laser out of glass
Is it possible to make a femtosecond laser entirely out of glass? That's the rabbit hole that Yves Bellouard, head of EPFL's Galatea Laboratory, went down after years of spending hours—and hours—aligning femtosecond lasers for lab experiments......»»
Researchers advance topological superconductors for quantum computing
Quantum computers process information using quantum bits, or qubits, based on fragile, short-lived quantum mechanical states. To make qubits robust and tailor them for applications, researchers from the Department of Energy's Oak Ridge National Labor.....»»
The Mysterious "Warming Hole" in the Middle of the US
The world is rapidly heating. So why has the central US been weirdly cool compared to the rest of the country?.....»»
Atomic Ru coordinated by channel ammonia in V-doped tungsten bronze for highly efficient hydrogen-evolution reaction
The utilization of hydrogen produced through electrochemical water splitting is widely regarded as an optimal pathway towards achieving the imminent objective of carbon neutrality......»»
Supermassive black holes affect the chemical composition of their host galaxies, research shows
New research shows that the supermassive black hole at the center of a galaxy can have a direct impact on the chemical distribution of the host galaxy. This provides another piece of the puzzle for understanding how galaxies evolve......»»
Autopsy of a star reveals what was eviscerated by a monster black hole
From the interior of a star to the accretion disk of a black hole. Enlarge / Ions of nitrogen and carbon show up in the spectrum of X-rays from a black hole's accretion disk. (credit: NASA/Chandra) Even huge stars are no.....»»
Motion of stars near Milky Way"s central black hole is only predictable for a few hundred years
The orbits of 27 stars orbiting closely around the black hole at the center of our Milky Way are so chaotic that researchers cannot predict with confidence where they will be in about 462 years. This finding emerges from simulations by three astronom.....»»
Measuring dark matter halos around ancient quasars
At the center of every galaxy is a supermassive black hole. Beyond a certain size, these become active, emitting huge amounts of radiation, and are then called quasars. It is thought these are activated by the presence of massive dark matter halos (D.....»»
Swift Observatory spots a black hole snacking on a nearby star
The Swift Observatory caught a new phenomenon: a black hole snacking on a star -- not totally destroying it, but pulling off material and nibbling away at it......»»
How does "MAD" accretion form around a black hole?
An international scientific team has revealed for the first time the magnetic field transport processes in the accretion flow of a black hole and the formation of a "MAD"—a magnetically arrested disk—in the vicinity of a black hole......»»
Quantum discovery verifies a decades-old theory on how monopoles decay
The field of quantum physics is rife with paths leading to tantalizing new areas of study, but one rabbit hole offers a unique vantage point into a world where particles behave differently—through the proverbial looking glass......»»
First observations ever of the outskirts of a supermassive black hole"s accretion disk
Nothing can evoke an existential perspective-spiral quite like looking at an image of a galaxy. At first glance, these sublime structures may appear rather serene. But in fact the center of many galaxies is a turbulent environment containing an activ.....»»
A giant black hole destroys a massive star
Astronomers have made a thorough forensic study of a star that was torn apart when it ventured too close to a giant black hole and then had its insides tossed out into space......»»
Researchers describe a "POT-hole" that protects our chromosome ends
Researchers have determined a new feature of how the natural ends of our chromosomes are protected from harmful outcomes......»»
Findlargedir: Find all “blackhole” directories with a huge amount of filesystem entries
Findlargedir is a tool written to help quickly identify “black hole” directories on any filesystem having more than 100k entries in a single flat structure. When a directory has many entries (directories or files), getting a directory lis.....»»
New study reveals temperature-coupled song preferences in an eavesdropping parasitoid fly
Ambient temperature can affect acoustic communication signals produced by ectothermic signalers. For example, the temporal features of acoustic signals can occur at a higher rate at higher temperatures. If species recognition is based on evaluating t.....»»