Physics News

Discovery of new material is key step toward more powerful computing

Quantum Physics News - 15 hours 47 min ago
A new material created by Oregon State University researchers is a key step toward the next generation of supercomputers.

Entanglement observed in near-macroscopic objects

Quantum Physics News - Wed, 04/25/2018 - 13:00
Perhaps the strangest prediction of quantum theory is entanglement, a phenomenon whereby two distant objects become intertwined in a manner that defies both classical physics and a common-sense understanding of reality. In 1935, Albert Einstein expressed his concern over this concept, referring to it as "spooky action at a distance."

Next step towards quantum network based on micromechanical beams

Quantum Physics News - Wed, 04/25/2018 - 13:00
In recent years, nanofabricated mechanical oscillators have emerged as a promising platform for quantum information applications. Quantum entanglement of engineered optomechanical resonators would offer a compelling route toward scalable quantum networks. Researchers at the TU Delft and the University of Vienna have now observed this entanglement and report their findings in this week's edition of Nature.

Nuclear radiation detecting device could lead to new homeland security tool

General Physics - Wed, 04/25/2018 - 12:20
A Northwestern University and Argonne National Laboratory research team has developed an exceptional next-generation material for nuclear radiation detection that could provide a significantly less expensive alternative to the detectors now in commercial use.

Invisible magnetic sensors measure magnetic fields without disturbing them

General Physics - Wed, 04/25/2018 - 09:30
Currently, most of the magnetic sensors used in today's computers, airplanes, cars, and other systems distort the magnetic fields that they are measuring. These distortions can cause major problems for some applications, in particular biomedical techniques, that require highly accurate measurements, and can also cause cross-talk in sensor arrays.

Using a quantum blockchain to protect blockchains of the future

Quantum Physics News - Wed, 04/25/2018 - 08:50
A pair of researchers with Victoria University of Wellington has suggested that the way to prevent future blockchains from future hackers using quantum computers is to use quantum blockchains. Theoretical physicists Del Rajan and Matt Visser explain their idea in a paper they have uploaded to the arXiv preprint server.

New technique drawing on echo state networks fills in the gaps to simulate how arrhythmic electrical signals go chaotic

General Physics - Tue, 04/24/2018 - 11:00
Cardiac arrhythmia results when the usual symphony of electric pulses that keep the heart's muscles in sync becomes chaotic. Although symptoms are often barely noticeable, arrhythmia leads to hundreds of thousands of deaths from unexpected, sudden cardiac arrest in the United States each year. A major issue that limits modeling to predict such events is that it is impossible to measure and monitor all the hundreds of variables that come together to make our hearts tick.

Electrogates offer stop-and-go control in microfluidics

General Physics - Tue, 04/24/2018 - 09:30
Although microfluidics devices have a wide variety of uses, from point-of-care diagnostics to environmental analysis, one major limitation is that they cannot be modified for different uses on the fly, since their flow paths are set during fabrication. In a new study, researchers have addressed this limitation by designing electrogates that can regulate the flow of liquid at different points along the microchannel—a process that can be entirely controlled with a smartphone.

Researchers uncover mechanism of scar-free wound healing in fruit fly embryos

General Physics - Tue, 04/24/2018 - 06:59
Stitches help deep cuts heal, but can leave a scar. Now, a new study conducted by a team of researchers at the University of Toronto may help scientists and medical professionals move toward scar-free wound repair.

Liquid cell transmission electron microscopy makes a window into the nanoscale

General Physics - Mon, 04/23/2018 - 16:25
From energy materials to disease diagnostics, new microscopy techniques can provide more nuanced insight. Researchers first need to understand the effects of radiation on samples.

Swirling liquids work similarly to bitcoin

General Physics - Mon, 04/23/2018 - 15:00
Fluid dynamics is not something that typically comes to mind when thinking about bitcoin. But for one Stanford physicist, the connection is as simple as stirring your coffee.

Yale plays quantum catch in new research

Quantum Physics News - Mon, 04/23/2018 - 12:13
Yale's latest work expanding the reach of quantum information science is actually a game of quantum pitch and catch.

Researchers investigate 'why clothes don't fall apart'

General Physics - Mon, 04/23/2018 - 09:30
Cotton thread is made of many tiny fibers, each just 2-3 cm long, yet when spun together the fibers are capable of transmitting tension over indefinitely long distances. From a physics perspective, how threads and yarns transmit tension—making them strong enough to keep clothes from falling apart—is a long-standing puzzle that is not completely understood.

Muons spin tales of undiscovered particles

General Physics - Fri, 04/20/2018 - 10:14
Scientists at U.S. Department of Energy (DOE) national laboratories are collaborating to test a magnetic property of the muon. Their experiment could point to the existence of physics beyond our current understanding, including undiscovered particles.