Researchers at the Institute of Quantum Optics and Quantum Information, the University of Vienna, and the Universitat Autonoma de Barcelona have achieved a new milestone in quantum physics: they were able to entangle three particles of light in a high-dimensional quantum property related to the 'twist' of their wavefront structure. The results from their experiment appear in the journal Nature Photonics.
NASA scientists are closer to solving the mystery of how Mars’ moon Phobos formed.
Light and matter are not totally different with regard to quantum physics. In specific situations, electrons that are negatively charged can combine together and form a coordinated dance permitting them to carry a current across an imperfect material. That motion, which takes place only if the electrons are restricted to a 2D plane, emerges as a result of a phenomenon referred to as the quantum Hall effect.
A problem that has been taxing scientists for nearly 40 years has been solved by a team of physicists at Royal Holloway, University of London.
Immediately after its 2008 launch, NASA’s Interstellar Boundary Explorer, or IBEX, spotted a curiosity in a thin slice of space: More particles streamed in through a long, skinny swath in the sky than anywhere else. The origin of the so-called IBEX ribbon was unknown – but its very existence opened doors to observing what lies outside our solar system, the way drops of rain on a window tell you more about the weather outside.
LIGO’s recent detection of gravitational waves marks the beginning of a new era for astrophysics, and further insights into black holes, neutron stars, supernovae, and other phenomena are expected before long, MIT LIGO Laboratory Director David Shoemaker told members of Congress this week.
A team of Spanish researchers, with the participation of the University of Granada (UGR), has accurately detected a structure in the innermost region of a quasar (small, very far objects that emit huge amounts of energy, comparable to that emitted by a whole galaxy) at a distance of more than five billion light-years from Earth.
We live in a universe dominated by unseen matter, and on the largest scales, galaxies and everything they contain are concentrated into filaments that stretch around the edge of enormous voids.
This month’s announcement by the National Science Foundation (NSF) that scientists for the first time detected gravitational waves in the universe as hypothesized by Albert Einstein 100 years ago has opened up a new era of exploration for astronomers and astrophysicists.
A team of scientists from Cornell University have developed atomically coherent quantum dot solids, which are 2D superstructures fabricated from single-crystal building blocks. Years ago, single-crystal silicon wafers redefined the very nature of electronics.
When is a solid not a real solid? When it’s a lattice of ultracold atoms held in place not by the covalent and ionic bonds that bind the atoms of “real” solids together — like your chair or your cellular phone — but by light waves.
The recent detection of gravitational waves by the Laser Interferometer Gravitational-Wave Observatory (LIGO) came from two black holes, each about 30 times the mass of our sun, merging into one. Gravitational waves span a wide range of frequencies that require different technologies to detect. A new study from the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has shown that low-frequency gravitational waves could soon be detectable by existing radio telescopes.
By Elizabeth Ferrara
25 Feb 2016
APEX, the Atacama Pathfinder EXperiment telescope, is located at 5100 metres above sea level on the Chajnantor Plateau in Chile's Atacama region. The ATLASGAL survey took advantage of the unique characteristics of the telescope to provide a detailed view of the distribution of cold dense gas along the plane of the Milky Way galaxy. The new image includes most of the regions of star formation in the southern Milky Way.
Three years after its explosion, a type Ia supernova continues to shine more brightly than expected, new research finds. The observations, made with the Hubble Space Telescope and published today in The Astrophysical Journal, suggest that powerful explosions like this one produce a heavy form of cobalt that gives the heat from nuclear decay an energy boost.
On September 14, 2015, the Laser Interferometer Gravitational-wave Observatory (LIGO) discovered gravitational waves from the merger of two black holes, 29 and 36 times the total mass of the Sun. This kind of occurrence is usually expected to be dark, however the Fermi Space Telescope spotted a gamma-ray burst instantly after LIGO's signal. Recent research indicates that the black holes must have been living in a single, gigantic star whose death led to the gamma-ray burst.